Steve's Slide Rules

Complete Slide Rule Listing alternative format

last update 3-13-24


Manufacturers/Distributers


Abbot Brown Beaminster (England)
Acu-Math
Acu-Rule
Air Ministry Laboratories (England)
Alvin
American Blueprint
American Gas Journal
Allegheny Plastics Inc.
American Oil Company
American Slide-Chart Corporation
Aristo/Dennert & Pape (Germany)
Arth-O-Graf Slidecharts
Aston & Mander (England)
AWF (Ausschuß für wirtschaftliche Fertigung) (Germany)
Beacon (Korea)
Berger Scientific Supplies
Bill-Mar
BRL/Blundell Harling (England)
Boonshaft & Fuchs (Denmark)
Boots Ringplan (England)
Robert Bosch (Germany)
British Slide Rule Company (England)
Brown Boveri (Germany)
Charles Bruning
Roger Bybee
Arth-O-Graf Slidecharts
C-Thru Ruler Co.
Carid (Denmark)
J. B. Carroll Co.
Charvoz-Roos
Climatemaker
Compass
Concise (Japan)
C. T. Cooper & Sons (England)
Cox & Stevens
Data Chart Corp.
Datalizer Slidecharts
John Davis & Son Ltd (England)
DAYCO
Deeva (India)
Dieterich-Post
Dietzgen
Ding Feng (China)
Diwa (Denmark)
Eagle
Ecobra (Germany)
Educational Instruments, Inc.
Emeloid Operations
Engineering Instruments, Inc., Peru, IN
Engineer's
Faber Castell (Germany)
Favor-Ruhl
Fearns Calculators (England)
Neal Feay
Felsenthal
Flying Fish (China)
Fowler's Calculators (England)
Foxboro Company
Fuji (Japan)
FXR
Gamma (Hungary)
General Dynamics
General Electric
Geotec (Canada)
Gerber Scientific Instrument Company
Gilson
A. M. Gordon (Scotland)
Gordon Co.
Graphic Calculator Co.
Graphoplex (France)
Gregg Illustrations
Grizzle
Guardian
W. and L. E. Gurley
Haenni (Switzerland)
Haiou Pai (China)
J. Halden (England)
Heath & Co. (England)
Donald Hedberg
Hemmi (Japan)
Hope (Japan)
Hornyak & Kelly
Hughes Owens (Canada)
Hungarian Military
Hutchison
Infrared Industries, Inc.
Instrumentation Laboratories Inc.
ITAB (Internationaler Tabellenverlag) (Germany)
I. T. E. Circuit Breaker Company
IWA (Ingenieurerb ro für Wirtschafliches Arbeiten) (Germany)
Jakar (Japan)
Japanese Artillery Rule
Jason
Kahl Scientific Instruments
M. W. Kellogg
Kent (Netherlands)
Keuffel & Esser
Koh-I-Noor (Czechoslovakia)
Lafayette Radio Corporation
Lawrence Engineering
Lietz
Loftus (England)
Loga (Switzerland)
Logar (Hungary)
Logarex (Czechoslovakia)
Lutz
Magnameta(England)
Makeba (East Germany)
Coleman J. Major
Marcantoni (Italy)
Masoneilan
Mear (England)
Meissner KG/VEB Mantissa (East Germany)
Micador (Australia)
Micronta
Francis T. Miles
Monarch
Musigraph
Nestler (Germany)
Nobema
Norma (Germany)
North American Aviation
Norton & Gregory (England)
Novotni
Nuclear Chicago
Olson
Omega
Otis King (England)
Palco
Patrick Corporation
PEC (Puregas Equipment Corp.)
Perrygraf Slidecharts
P.I.C./British Thornton (England)
Pickett
Post
H. R. Potter
Precision Scale Inc.
Radium Chemical Company
Ratcliffe (England)
Reiss (East Germany)
Relay (Japan)
Richardson
Ricoh (Japan)
Ridgway's (England?)
Ross Engineering
Royal (Japan)
Russian
Sanderson
Sandia Corporation
Schacht & Westerich (Germany)
SeeGee Solutions
SIC (Scientific Instruments Corp.)
SIDA (China)
Skala (Poland)
Sans & Streiffe
Sillcocks Miller Co.
Simplon trademark of Dargue Bros, Halifax (England)
Slyd-Rul
W. H. Smith (England)
Somar Laboratories
Spirule Company
Spitzglass
Staedtler Mars (Germany)
Staniland
Stanley (England)
Sterling
Tacro
Tecnostyl (Italy)
Tehnolemn (Romania)
Teknor (Japan)
Tektronix
Teledyne Post
Thomas
Thomlinson (England)
British Thornton/P.I.C. (England)
Tianjin (China)
U.G.I Contracting Company, Div of United Engineers & Constructors, Inc.
UGK (Bulgaria)
Unique (England)
Unknown Origin
Union Instrument Company
U. S. Army
U. S. Navy
UTO (Denmark)
VEB Mantissa/Meissner KG (East Germany)
V&E Manufacturing Company, Inc.
Vetoli (Bulgaria)
Warren-Knight
Weber
J. H. Weil
White & Gillespie (Australia)
Whitehead & Hoag
Wichmann (Germany)
Willsonn
Xuesh (China)
Xylem
Yokogama Electric Works

Names in parentheses are those in which the company is/was located.

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Individual Slide Rules


Abbot Brown Beaminster Rules
Abbot Brown Isotope Calculator, A.E.R.E. Harwell
Abbot Brown Isotope Handling Calculator No. 1, A.E.R.E. Harwell

Acu-Math Rules
AcuMath 130 Log Log Decimal Trig
AcuMath A-60 Log Log Decimal Trig
AcuMath A-130 Log Log Decimal Trig
AcuMath 150 Log Log Decimal Trig
AcuMath 150 Log Log Decimal Trig, Example 2
AcuMath 400 Simplex Trig
AcuMath 550 Professional Mannheim Trig
AcuMath 1300 Log Log Decimal Trig
AcuMath 1300T Log Log Decimal Trig
AcuMath 1311 Log Log Decimal Trig (White over Magnesium)
AcuMath 1311 Log Log Decimal Trig (Yellow over Magnesium)
AcuMath 1500 Log Log Decimal Trig

Acu-Rule Rules
Acu-Rule Arel G-W Photo Slide Rule
Acu-Rule Spring Design Slide Rule for Connecticut Spring Company
Acu-Rule Spring Design Slide Rule for Mid-Continent Spring Co.
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Air Ministry Laboratory Rules
AML Mk IIIa Bygrave Position Line Slide Rule
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Allegheny Plastics Inc.
Allegheny Plastics Inc., Illinois Coil Spring Company Slide Rule
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Alvin Rules
Alvin 1150 Elite Desi-Log
Alvin 1151 Elite MultiLog
Alvin 1157 Elite Vector
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American Gas Journal Rules
American Gas Journal Low Pressure Gas Flow Computer
American Gas Journal High Pressure Gas Flow Computer
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American Blueprint Rules
American Blueprint Military Slide Rule
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American Oil Company Rules
American Oil Company Discounted Cash Flow Slide Rule
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American Slide-Chart Corp. Slidecharts
American Slide-Chart Corp. Hydraulic Slide Rule
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Aristo/Dennert & Pape Rules
Aristo 109 Rietz 50 cm
Aristo 630 Chemie, System Dr. Buckle.
Aristo 867U Darmstadt 5"
Aristo 868 Pocket Studio 5"
Aristo 869 Studiolog 5"
Aristo 870 Charvoz Multilog 5"
Aristo 0903 LL Scholar
Aristo 0903 LL Scholar - Capitol Radio Engineering Institute
Aristo 0906 LL BiScholar
Aristo 0908 Trilog
Aristo 914 Elektro
Aristo 915 Elektro
Aristo 915E Elektro
Aristo 918 Sewer Slide Rule, system Vicari
Aristo Federfix 920 Computational Device for Cylindrical Spring Calculations
Aristo 930 Textile Rule System Beck
Aristo 939/n=10 Stahlbeton
Aristo 939/n=15 Stahlbeton
Aristo 956 Bildflug Photogrammetry Slide Rule
Aristo 958 Geodat (360°)
Aristo 0958 Geodat (400g)
Aristo 965 Commerz II
Aristo 966 Log Log
Aristo 966H Log Log
Aristo 966H Log Log, Example 2 with metal end braces
Aristo 967 Darmstadt
Aristo 967U Darmstadt
Aristo 0968 Studio
Aristo 0968 Studio, Ex 2 (w/T1 and T2 scales)
Aristo 01068 Studio, 20" (w/T1 and T2 scales)
Aristo 968 Studio
Aristo 0969 Studiolog
Aristo 970 Charvoz Multilog
Aristo 970 Charvoz Multilog
Aristo 970E Nobema Multilog
Aristo 0970 Charvoz Multilog, Example 2
Aristo 1067U Darmstadt, 20"
Aristo 01070 Multilog, 20"
Aristo 971 Hyperbolog
Aristo 0971 Hyperbolog
Aristo 0972 Hyperlog
Aristo 10065 System Gruter
Aristo 10072 Hazen-Williams Hydraulic Slide Rule
Aristo 10127 Bosig Compressor Rule
Aristo 10132 Steel Mesh Reinforced Concrete Calculations (Baustahlgewebe-Lagermatten)
Aristo 10174 Radiation Protection Rule
Aristo 10175 Cleveland Institute of Electronics
Aristo 40140 Steel Mesh Reinforced Concrete Calculations (Baustahlgewebe-Listenmatten)
Aristo 80100 Steel Mesh Reinforced Concrete Calculations (Baustahlgewebe-Lagermatten) 5"
Aristo 80102 Mobil Fuel Combustion Slide Rule 5"
Aristo 80107 Exhaust Gas Slide Rule
Aristo 80126 Special Slide Rule for the Optical Workshop 5"
Aristo 90125 Acetylene Slide Rule
Aristo 90126 Hydraulic Pressure Loss Slide Rule
Aristo 90172 Slide Rule for Pipeline Calculations
Aristo 90184 Reinforced Concrete Calculations (Baustahlgewebe-Dusseldorf)
Aristo 90186 Calculation of Gas and Steam Flows
Aristo 90193 Bopp & Reuther Venturi Slide Rule
Aristo 100101 IBM Manpower Calculator
Aristo (Dennert & Pape) Quadrat QR 41
Aristo (Dennert & Pape = gwr) MHR1 Hohenrechenschieber
Aristo (Dennert & Pape = gwr) WWII Artillery Slide Rule
Aristo (Dennert & Pape) Zeiss Aerotopograph Jena
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Arth-O-Graf Slidecharts
Arth-O-Graf TECOM Antenna Calculator
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Aston & Mander Rules
Aston & Mander Hannyngton Extended Scale Slide Rule

Ausschuß für wirtschaftliche Fertigung Rules
AWF 705 Change in Spring Length Calculator
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Beacon Rules
Beacon 315 Hyperbolic
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Berger Rules
Berger Scientific Supplies C2138M
Berger Scientific Supplies M2150 Trigolog
Berger Scientific Supplies C2165 Log Log Decimal Trig
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Bill-Mar Rules
Bill-Mar No. 24 Concrete Calculator
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Booonshaft & Fuchs Rules
Boonshaft & Fuchs Direct Reading Frequency Response Slide Rule
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Boots Ringplan Rules
Boots Ringplan Precision Log Log Slide Rule
Boots Ringplan Log Log Duplex Slide Rule
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Bosch Rules
Bosch Cos-φ Calculator
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Blundell Rules
Blundell Harling AL6 Log Log
Blundell Blakeborough Valve Sizing Rule
Blundell Luton Type E.3. Electro
Blundell Luton Universal U.7.
Blundell Omega 407 Technico
Blundell Harling Academy 302 Log-Log
Blundell Harling Academy 302 Log-Log, 2nd Version
Blundell Harling Super Duplex A504
Blundell Harling Super Duplex A505
Blundell Harling Academy Duplex 505
Blundell Harling Academy Duplex 506
Blundell Harling 802 Log-Log
Blundell Harling 805 Electro
Blundell Harling 805 Electro, Example 2
Blundell Harling Academy Duplex 904
Blundell Harling Academy Duplex 905
Blundell Harling FC3540 Fisher Controls Universal Valve Sizing Slide Rule
Blundell Harling P3867 Voltage Drop Calculator
Blundell Harling T.11 Technicians
Blundell Harling T.12 Technicians
BRL T50 Duplex Janus Series
BRL T50 Duplex Janus Series, Variant 2
BRL T51 Duplex Janus Series
BRL N52 Janus Series Navigator's Dual Face Slide Rule, Ex 1
BRL N52 Janus Series Navigator's Dual Face Slide Rule, Ex 2
BRL P.G. 54 Photogrammetry Slide Rule
BRL Mark 4A Balloon Pilot Slide Rule
BRL Janus Series HF55 Tarrant Hydraulic Slide Rule
BRL Janus Series JV 56
BRL P1415 Water Flow in Pipes, Hazen-Williams Formula; for Stanton and Staveley Limited
BRL Met. Office Mk IV Humidity Slide Rule, Met. Ref. No. 1468
BRL Humidity Slide Rule, Mk. 6A - Celsius
BRL P1365 Flow of Water in Pipes
BRL P1454/2 Mk II Slide Rule for Calculation of Diameters of Orifice Plates With Corner Taps
BRL P1614 TEENI Soil Density Slide Rule - Clockhouse Engineering Ltd.
BRL Met. Office M2260 Mk VI Humidity Slide Rule, Met. Ref. No. 22000
BRL P2808 Ultrasonic Slide Rule
BRL P3065 Bedford Truck Body & Payload Weight Distribution Rule
BRL P3259 Wavin Pipe Friction Computer
BRL P3486 Farris GEC-Elliott Safety Relief Valve Sizing Rule
BHL P4277 Nelson-Jones Circuit Designers Slide Rule
BRL P4366 EMEFCO Ultrasonic Slide Rule, M. Falk & Company Ltd
BRL P4843 Lummus Hydraulic Slide Rule
BRL Radiac Slide Rule for Nuclear Fission Products
BRL Radiac No. 1 Slide Rule for Radiation Exposure Calculations
BRL Radiac No. 1 Mk 2 Slide Rule for Radiation Exposure Calculations
BRL British Steel Castings Research Association Exposure Calculator for Gamma Radiation, Mk II
BRL Vector Slide Rule
BRL Alexander Slide Rule for Pipe Weights and Strengths
BRL? Paper Calculations Slide Rule
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Brown Boveri Rules
Brown Boveri Motor Slide Rule
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British Slide Rule Company
British Slide Rule Company Supreme Slide Rule
British Slide Rule Company Technical Standard Slide Rule
British Slide Rule Company Technical Aeronautical Slide Rule
British Slide Rule Company Technical Aeronautical Slide Rule, Example 2
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Charles Bruning
Charles Bruning Log Log Duplex type (sme as Dieterich-Post 3072)
Charles Bruning 2420 Mannheim Polyphase-type
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B.T.U. Rule Company
B.T.U. Rule Co. B.T.U. Rule for Estimating Steam and Water Radiation
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Roger Bybee
Bybee Voltage Drop Calculator for Distributed Impedance Loads
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C-Thru Rules
C-Thru S-889 Log Log Duplex
C-Thru S-890 Log Log Duplex
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Carid Rules
Carid 3000
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J. B. Carroll Rules
J. B. Carroll Type MB-2A Navigation and True Air Speed Computer
J. B. Carroll Spring Design Slide Rule for Associated Spring Corporation
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Charvoz-Roos Rules
Charvoz-Roos SR-111 Trig-O-Log
Charvoz-Roos SR-108 Dual 10"/5"
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Climatemaker Rules
Climatemaker 1940 Heat Loss Calculating Rule
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Compass Rules
Compass 1321 Log Log
Compass 1325
Compass SR-909
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Concise Rules
Concise Sama & Etani CIBA Medical Tables and Calculator
Concise Sama & Etani Chemical Tables & Circular Slide Rule, Model 600-CE
Concise Sama & Etani Science Tables & Circular Slide Rule, Model 600-ST
Concise Sama & Etani Conversion Tables & Circular Slide Rule, Dow Chemical Company, Model CTCS-552
Concise Sama & Etani (Hydraulic) Conversion Tables & Circular Slide Rule, Continental Pipe Line Company, Model CP-1
Concise Sama & Etani (Electrical) Conversion Tables & Circular Slide Rule, Allis-Chalmers, General Products Division, Model EE-112
Concise Sama & Etani Reference Tables & Circular Slide Rule, Dresser Atlas Division, Inc., Dresser Industries Inc, Model DA-2
Concise Sama & Etani Circular Slide Rule & Conversion Tables, Gustav Hirsch Organization, Inc.
Concise Sama & Etani Reference Tables & Circular Slide Rule, GTE Sylvania Lighting Products Group, Model GTE-1
Concise Sama & Etani Circular Slide Rule and Conversion Tables, Gulfgas
Concise Sama & Etani Reference Tables & Circular Slide Rule, Dresser Magcobar, Model MAG-1
Concise Sama & Etani Reference Tables & Circular Slide Rule, Nalco Pulp and Paper Chemicals, Model NA-1
Concise Sama & Etani Conversion Tables & Circular Slide Rule, Baroid Division NL Industries, Model NL-1, Insert NL
Concise Sama & Etani Mobil Lubricants Circular Slide Rule & Viscosity Conversion Factors
Concise Bitumen Volume Calculator
Concise 380 Radio Computer Circular Slide Rule
Concise Mallinkrodt Radiological Tables and Circular Slide Rule
Concise Alpha 4300
Concise Stadia Slide Rule
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C. T. Cooper & Sons Rules
C. T. Cooper & Sons, Baines No. 1 Slide Rule for Flamants Formula for Water Velocity in Cast Iron Pipes
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Cox & Stevens Rules
Cox & Stevens Foxboro Flow Rule
Cox & Stevens E-604 Load Adjuster for the Consolidated B-24 and PB4Y-1 Liberator
Cox & Stevens E-624 Load Adjuster for the Boeing B-17 Flying Fortress
Cox & Stevens E-658 Load Adjuster for the Boeing B-25 Mitchell
Cox & Stevens E-719 Load Adjuster for the Boeing B-29 Superfortress
Cox & Stevens E-800 Load Adjuster for the Boeing B-29 Superfortress
Cox & Stevens E-1000 Load Adjuster for the Convair B-36D Peacemaker
Cox & Stevens E-1050 Load Adjuster for the Boeing B-47E Stratojet
Cox & Stevens E-1147 Load Adjuster for the Lockheed C-130 Hercules
Cox & Stevens E-1113 Load Adjuster for the Sikorsky HUS-1 Seahorse helicopter
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Data Chart Corp. Rules
Data Chart Corp. ADEL Division, De Laval Turbine, Conversion Factors and Circular Slide Rule
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John Davis & Son, Ltd Rules
Davis-Grinsted Complex Calculator Slide Rule
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Datalizer Slide Charts
Datalizer Cast Iron Pipe Research Association Pipe Network & Friction Loss Calculator
Datalizer Loren Cook Duct Designer and Fan Law Calculator
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DAYCO Rules
DAYCO A-3375 DAYCOLOG II V-Belt Drive Fatigue Analyzer
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Deeva Rules
Deeva 720 Polylog
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Dieterich-Post Rules
Dieterich-Post 3072
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Dietzgen Rules
Dietzgen 1725 Microglide Vector Type Log Log
Dietzgen B-1725 Vector Type Log Log
Dietzgen N1725L Microglide Vector Type Log Log
Dietzgen 1731 Trig Log Log
Dietzgen 1732 Maniphase Multipplex Decimal Trig Log Log
Dietzgen N1732 Maniphase Multiplex Decimal Trig Log Log
Dietzgen 1733 Polymath Decimal Trig Log Log
Dietzgen N-1733 Polymath Multiplex Decimal Trig Log Log
Dietzgen 1734 Microglide Decimal Trig Log Log
Dietzgen G-1734 Microglide Decimal Trig Log Log
Dietzgen B-1734 Decimal Trig Log Log
Dietzgen 1735 Maniphase Multiplex Vector Type Log Log
Dietzgen 1737 Decimal Trig Log Log
Dietzgen 1738 Multiplex Style M Decimal Trig Log Log
Dietzgen 1739L Clear Scale Improved Decimal Trig Log Log
Dietzgen 1757 PrimaTrig
Dietzgen 1741 Novo Biplex
Dietzgen 1750 Maniphase
Dietzgen 1751 Maniphase Multiplex Industrial Type
Dietzgen 1759-B Mannheim Phillips
Dietzgen 1773 Pocket Darmstadt 5"
Dietzgen 1778 Redi-Log 5"
Dietzgen 1778 Redi-Log 5", Example 2
Dietzgen 1779 Pocket Log 5"
Dietzgen 1798 Dempster RotaRule Model AA
Dietzgen Needham's Trig-Easy Tools
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Ding Feng Rules
Ding Feng 5471 Log Log Duplex Hyperbolic
Ding Feng 5751 Log Log Duplex Hyperbolic
Ding Feng 5810 Log Log Duplex Hyperbolic
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Diwa Rules
Diwa 101 Log Log
Diwa 141 Darmstadt
Diwa 311 Electro
Diwa 341 Businessman Elegant
Diwa 351 Darmstadt
Diwa 511 Electro
Diwa 541 Businessman
Diwa 551-1 Darmstadt
Diwa 710 Teknilog
Diwa 720 Polylog
Diwa 730 Combilog
Diwa 913
Diwa 914
Diwa 930 Polylog
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Eagle Rules
Eagle 201
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Ecobra Rules
Ecobra 1600
Ecobra Cosmos 1711
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Educational Instruments, Inc. Rules
Corona I Circular Slide Rule
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Emeloid Co. Inc Rules
Smith Chart - Radio Line Transmission Calculator
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Engineering Instruments, Inc., Peru, IN
77A American Log Log
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Engineer's Rules
Decitrig Duplex Log Log 1500
Decitrig Duplex Log Log 1510
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Faber Castell Rules
Faber Castell 342 Columbus, System Rohrberg Commercial Slide Rule, Variant 2
Faber Castell 378 Elektro
Faber Castell 398 Elektro
Faber Castell 1/22/322 Disponent
Faber Castell 1/38 Tachymeter
Faber Castell 1/48 Maschinenzeit
Faber Castell 1/54 Darmstadt
Faber Castell 1/87 Rietz
Faber Castell 1/92 Engineer's Log Log
Faber Castell 1/98 Elektro
Faber Castell 2/31 Stahlbeton
Faber Castell 2/82 Duplex
Faber Castell 2/82 Castell Duplex, Variation 2
Faber Castell 2/82N Castell Duplex
Faber Castell 2/83 Castell Novo Duplex
Faber Castell 2/83N Castell Novo Duplex
Faber Castell 2/84 Mathema
Faber Castell 2/84N Mathema
Faber Castell 3/11 for steel & concrete calculations
Faber Castell 4/54 Darmstadt 50 cm
Faber Castell 4/87 Rietz 50 cm
Faber Castell 4/98 Elektro 20"
Faber Castell 52/82 D-Stab
Faber Castell 57/74 Textile Slide Rule, System Schirdewan
Faber Castell 57/89 Log-Log
Faber Castell 62/82 Duplex 5"
Faber Castell 62/82N Castell Duplex 5"
Faber Castell 62/83 Castell Novo Duplex 5"
Faber Castell 62/83N Castell Novo Duplex 5"
Faber Castell 63/82 Biplex 5"
Faber Castell 63/83 Castell Novo Biplex 5"
Faber Castell 67/54Rb Darmstadt with Addiator 5"
Faber Castell 67/98b Elektro
Faber Castell 8/168 Mobil Viscosity Slide Rule
Faber Castell 111/38 Tachymeter 400g
Faber Castell 111/48 Maschinenzeit
Faber Castell 111/54 Darmstadt
Faber Castell 111/66 Demegraph, System Schirmer
Faber Castell 111/98 Elektro
Faber Castell 152/82 Schul-D-Stab
Faber Castell 157/89 Log-Log
Faber Castell Verlag Chemie
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Favor-Ruhl Rules
Favor-Ruhl A-400
Favor-Ruhl A-450
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Fearns Calculators
Fearns Belt Conveyor Calculator
Fearns Circular Slide Rule
Fearns Inertia Slide Rule
Fearns Circular Slide Rule & Trigonometric Calculator
Fearns Power Factor Calculator and Slide Rule
Fearns Babcock and Wilcox Reactirule 5"
Fearns Tank Capacity Calculator
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Neal Feay Rules
Neal Feay CR-6 Cost Reduction Slide Rule
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Felsenthal Rules
Felsenthal C-130B Computer, Take-Off and Landing
Felsenthal US Army Air Forces True Airspeed Computer A.C. Type G-1
Felsenthal Bureau of Aeronautics US Navy Aircraft Navigational Computer Mk 8
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Flying Fish Rules
Flying Fish 1001 Log Log Duplex
Flying Fish 1002 Hyperbolic Log Log Duplex
Flying Fish 1003 Hyperbolic Log Log Duplex
Flying Fish 1004 Hyperbolic Log Log Duplex
Flying Fish 1005 Stadia Rule
Flying Fish 1009 Hyperbolic Log Log Duplex
Flying Fish 1013 Aerospace
Flying Fish 1015-1 Hyperbolic Log Log Duplex
Flying Fish 1016 Ventilation Duct
Flying Fish 1017 Chemical Engineering
Flying Fish 1018 Electrical
Flying Fish 1200 Pocket Vector
Flying Fish Milling Machine Calculations
Flying Fish Humidity Slide Rule
Flying Fish I-J Function
Flying Fish Rubber Slide Rule - Shanghai Rubber Institute
Flying Fish Product Quality Management Slide Rule
Flying Fish Ultrasonic Probe Slide Rule
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Fowler's Calculators
Fowler's Jubilee Magnum Extra Long Scale Calculator
Fowler's Type RX Long Scale Calculator
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Foxboro Rules
Foxboro Valve and Meter Calculator
Foxboro Valve and Meter Calculator, Example 2
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Fuji Rules
Fuji 552P Duplex Log/Log 5"
Fuji 1200 Darmstadt Special
Fuji 1200 01 Darmstadt Special
Fuji 1200 01 Darmstadt Special Ex. 2
Fuji 1201 Yamayo Tape Measure Correction Slide Rule
Fuji 1250 Duplex LogLog
Fuji 1250S Duplex LogLog
Fuji 1280 Duplex Log/Log
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FXR Rules
FXR Smith Chart & Slide Rule
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Gamma Rules
Gamma Pocket Artillery Slide Rule
Gamma 2503 Budapest (same as Logar 2512)
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General Dynamics
General Dynamics Reliability Slide Rule
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General Electric Rules
General Electric Radiation Calculator Gen 15-C
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Geotec Rules
Geotec 341 3012 Versalog II
Geotec 341 3665 Advanced Engineering Duplex
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Gerber Scientific Instruments
Gerber GA-103 GraphAnalogue
Gerber TP-007100B Variable Scale
Gerber TP-007200B Variable Scale
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Gilson Rules
Gilson 8 Atlas Circular Rule
Gilson 8 Binary Circular Rule
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A. M. Gordon
A. M. Gordon Propeller Properties Slide Rule
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Gordon Co.
Gordon Co. LogLog
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Graphic Calculator Co. Rules
Graphic Calculator Co Stephenson-Pfahl Hardenability Slide Rule
Graphic Calculator Co Boiler Efficiency and BTU Cost Calculator
Graphic Calculator Co Boeing 727 Weight and Balance Calculator
Graphic Calculator Co Union Pacific Railroad Calc-U-Layer Slide Rule
Graphic Calculator Co pH Calculator
Graphic Calculator Co Chemical Predictor
Graphic Calculator Co Water Treatent Calculator
Graphic Calculator Co Universal Soil Loss Erosion Calculator
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Graphoplex Rules
Graphoplex 630 Surveyor's Rule 400 g
Graphoplex 640, Electric Log Log
Graphoplex 640, Electric Log Log, blank back, Example 2
Graphoplex 640, Electric Log Log, blank back, Example 3
Graphoplex 641 System Log Log S
Graphoplex 643 5" Pocket, blank back
Graphoplex 680 Reinforced Concrete Calculations
Graphoplex 690 Duplex
Graphoplex 690a Neperlog Duplex
Graphoplex 692b Pocket Neperlog Duplex 5"
Graphoplex 698 Electronics Engineering
Graphoplex 1614 System Log Log C.A.P.
Graphoplex Stack Loss Pocket Rule
Graphoplex Calcrude Oil Viscosity Slide Rule
Graphoplex Pierre Gy Sampling Slide Rule
Graphoplex Weight of Steel Pipes Slide Rule
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Gregg Illustrations Rules
Gregg TAD True Position Tolerance Comparator
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Grizzle Rules
Grizzle Water Line Capacity Rule
Grizzle Orifice Meter Calculating Rule
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Guardian Rules
Guardian Multiphase Slde Rule for Checking Account Analysis
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W. and L. E. Gurley Rules
Gurley Cox Stadia Computer
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Haenni Rules
Haenni Humidity-Temperature Calculator
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Haiou Pai Rules
Haiou Pai 6531 Hyperbolic
Haiou Pai 6681 Log Log Duplex Hyperbolic (for Aeronautical Engineers)
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J. Halden Rules
Halden Calculex
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Heath & Co.
Heath & Co. Hezzanith Carmody Navigational Slide Rule
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Hedberg Rules
Donald Hedberg ChemPredictor
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Hemmi Rules
Hemmi P37 Sales Slide Rule
Hemmi 64 Rietz
Hemmi 64T Super-Rietz
Hemmi 70 Rietz 20 inch
Hemmi 70 Rietz 20 inch, Example 2
Hemmi 80/1 Electro
Hemmi 80/3 Electro with Overrange
Hemmi 80K Electro
Hemmi 86/3K 5 inch Electro with Overrange
Hemmi 130 Darmstadt
Hemmi 130W Advanced Darmstadt
Hemmi 149A 5" (shorter version of Hemmi 259)
Hemmi 153 Electrical Engineer
Hemmi 154 Electronic with Two Cursors for Expert Electrical Engineers
Hemmi 157 General Engineering w/Log Log scales
Hemmi 159 (same as Post 1462H)
Hemmi 200 Ultra Accuracy 6-Segment Duplex - 16"
Hemmi 201 4-Segment Duplex - 20"
Hemmi 251 General Purpose Mechanical Duplex
Hemmi 254W "High School Student's"
Hemmi 254WN "High School Student's"
Hemmi 255 Expert Electrical Engineer
Hemmi 255D Expert Electrical Engineer
Hemmi 256 Electronics
Hemmi Denkishoin Electronics Engineering
Hemmi 257 Chemical Engineering
Hemmi 257L Expert Chemical Engineer
Hemmi 258 Post Versalog 1460
Hemmi 259 Mechanical Engineer
Hemmi 259D Mechanical Engineer
Hemmi 260 Advanced Mechanical Duplex
Hemmi 264 Vectolog (Bamboo Version of P253)
Hemmi 266 Electronics
Hemmi 269 Civil Engineering
Hemmi 274 General Engineering Rule
Hemmi 275D Expert Electrical Engineer 20"
Hemmi 279 Mechanical Engineer 20"
Hemmi 279D Mechanical Engineer 20"
Hemmi 401 Coiled Spring Slide Rule
Hemmi 405 Chemical Slide Rule for Portland Cement
Hemmi 642T Improved Rietz - Ahrend
Hemmi P253 Vectolog
Hemmi P261 Engineering Duplex
Hemmi P267 Structural Design
Hemmi P402 Corporate Performance Analysis, Manufacturing Businesses
Hemmi P403 Corporate Performance Analysis, Wholesale & Retail Distributors
Hemmi P452 Business Duplex
Hemmi P262 Advanced Engineering (Rietz)
Hemmi P265 Business
Hemmi Hydraulic Slide Rule
Hemmi Foxboro Flow and Valve Rule
Hemmi Foxboro Flow and Valve Rule, Ex. 2
Unknown Hemmi Mannhein-type with 'C'-style cursor
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Hope Rules
Hope 530
Hope 65 Closed Form Simplex Log Log
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Hornyak & Kelly Rules
Hornyak & Kelly Weight Slde Rule
Hornyak & Kelly Weight Slde Rule, Example 2
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Hughes-Owens Rules
H-O 1774 00 Versalog
H-O 1777 Versalog
H-O 341 3010 Versalog
H-O 341 3130 Vectolog
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Hungarian Military Rules
Hungarian Military Radio Tuning Aid
Hungarian Military Pilot's Flight Rule
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Hutchison Rules
Hutchison Pipeline Flow Calculator, Gas, Air, Oil, and Water
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Infrared Industries, Inc.
Infrared Industries, Inc. Infrared Slide Rule
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Instrumentation Laboratories Inc. Rules
Instrumentation Laboratories Inc. Blood Acid/Base Calculator
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ITAB Rules
ITAB Siemens Kondensator Rechenstab
ITAB Antenna Attenuation Value Calculator
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I.T.E. Circuit Breaker Company Rules
I.T.E. Circuit Breaker Co. Interrupting Capacity Calculator
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IWA Rules
IWA 0257 Slide Rule for Radio Technicians
IWA 0432 Building Heat Requirements Slide Rule (according to DIN 4701)
IWA 0628 Control Valve Calculations Slide Rule
IWA 0658 Control Valve Calculations Slide Rule
IWA 0594 Psychrometer and Humidity Slide Rule
IWA 0768 A/C Duct Calculation Slide Rule
IWA 0778 Herion Hydraulic-Pneumatic Slide Rule
IWA 1638 System Wern ABC Circular Slide Rule
IWA 02114 Trilux Special LIghting Slide Rule
IWA 06094 Atlas Copco Compressed Air Line Properties Slide Rule
IWA 05136 Fisher Governor Company Control Valve Sizing Rule Mark -VIE
IWA 51903 Electronics Slide Rule
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Jakar Rules
Jakar No. 29 Student Log Log
Jakar No. 1011 Log Log
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Japanese Rules (unknown manufacturer)
Japanese Brass Artllery Slide Rule
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Jason Rules
Jason 802 Decitrig Log Log
Jason 803 Decitrig Log Log Duplex
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Kahl Scientific Instruments Rules
Kahl Scientific Insts. Culbertson Oceanograpic Slide Rule
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M. W. Kellogg Rules
M. W. Kellogg Hydraulic Slide Rule
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Kent Rules
Kent 7153LL Generic Open Simplex Rule
Kent 9680 Open Duplex Rule
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Keuffel & Esser Rules
K&E 4012 Thacher Cylindrical Calculator
K&E 4031 Mannheim 5"
K&E 4045 Mannheim 16"
K&E N4053-2 Mannheim (Polyphase)
K&E N4053-3 Mannheim (Polyphase)
K&E N4053-5 Mannheim (Polyphase)
K&E 4058W Beginner's Slide Rule
K&E 68 1617 (same as 4053-3s) Mannheim (Polyphase)
K&E 4071-3 Polyphase Duplex Decitrig
K&E N4080-3 Log Log Duplex Trig, Scale Set #3
K&E 68 1318 Log Log Duplex Trig, Scale Set #4
K&E 4080-3 Log Log Duplex Trig, Scale Set #2
K&E 4080-5 Log Log Duplex Trig, Scale Set #4
K&E 4081-3 926807 Log Log Duplex Decitrig, Scale Set #2
K&E 4081-3 860372 Log Log Duplex Decitrig, Scale Set #5
K&E N4081-3 Log Log Duplex Decitrig, Scale Set #3
K&E E4081-3 321650, Scale Set #6
K&E 4081-3 253284, Scale Set #6 with magnifier
K&E 68 1210 Log Log Duplex Decitrig, Scale Set #6
K&E 68 1210 Log Log Duplex Decitrig, Ex. 2, Ser. # 380599, Scale Set #6
K&E 68 1200 Log Log Duplex Decitrg (also 4081-5), Scale Set #4
K&E 4082-3 866797 Log Log Duplex Decitrig (with F scale)
K&E 4083-3 420763 Log Log Duplex Vector, Scale Set #1
K&E 4083-3 946792 Log Log Duplex Vector, Scale Set #4
K&E N4083-3 738830 Log Log Duplex Vector, Svale Set #2
K&E 4088-3 Polyphase Duplex
K&E 4090-3 469951 Log Log Trig Duplex
K&E 4091-3 454375 Log Log Decitrig
K&E 4092-3 479522 Log Log Duplex
K&E 4093-3 548954 Log Log Vector Duplex
K&E 4093-3 583239 Log Log Vector Duplex, Example 2
K&E 68-1434 Log Log Duplex Vector
K&E 4094 Merchant's Slide Rule
K&E N4096 Merchant's Desk Slide Rule
K&E 4100 Stadia Rule
K&E N4100 Stadia Rule
K&E N4101 Stadia Rule 20"
K&E N4102 Surveyor's Duplex
K&E 4110 Mannheim Power Trig
K&E N4133 Roy Lance Electrician's Slide Rule
K&E 4138 Morrison's Radio Engineer's Slide Rule
K&E 4139 251793 Cooke Radio Rule
K&E 4139 979921 Cooke Radio Rule,Example 2
K&E 4139 929755 Cooke Radio Rule,Example 3
K&E 4143 Kissam Stadia Rule
K&E 4160 Chemist's Rule
K&E 4160 Chemist's Rule, Example 2
K&E 4168 Polyphase Duplex 5"
K&E 4175 Psychrometric Slide Rule
K&E 4181-3 Log Log Duplex
K&E 4181-1 Log Log Duplex 5"
K&E 4181-1 Log Log Duplex 5" w/SRT instead of ST scale, & red colored inverted and LL0 scales
K&E 68 1251 Jet-Log Log Log Duplex Decitrig
K&E N9071-3 Doric Polyphase Duplex Decitrig
K&E N9081-3 11554 Doric Log Log Duplex Decitrig
K&E N9081-3 61274 Doric Log Log Duplex Decitrig, Ex. 2
K&E 68 1100 Decilon
K&E 68 1100 Decilon Example 2
K&E 68 1100 Decilon Example 3
K&E 68 1130 5" Decilon
K&E 68 1400 Analon Science Analysis Rule
K&E Brick-O-Meter
K&E National Union Radio Slide Rule
K&E Short Base Triangulation Slide Rule
K&E Associated Spring Corp. Belleville Spring Washer Computer
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Koh-I-Noor Rules
Koh-I-Noor 10000 Koh-I-Log
Koh-I-Noor 10010 Techno-Log
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Lafayette Rules
Lafayette F-341 Log Log Duplex Decitrig
Lafayette F-428 Log Log Duplex Decitrig
Lafayette F-681 Deci Log 5"
Lafayette F-686 VectorLog
Lafayette F-990 Decima-Dyne
Lafayette 99-7055
Lafayette 99-7099 Decima-Log 5"
Lafayette 99-7102 VectorLog
Lafayette 99-7128 Decimadyne
Lafayette 99-7031 Duplex Decitrig Log Log
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Lawrence Engineering Rules
Grizzle Gas Pipe Line Slide Rule
Grizzle Water Line Capacity Slide Rule
Lawrence Flashrule 6-0p
Lawrence 8-L Voltage Drop Calculator
Lawrence 10-G Cutting Speed Calculator
Lawrence Molecular Ratio Slide Rule (for Portland Cement calculations?)
Lawrence F. M. Coverage Calculator
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Lietz Company Rules
Lietz Stadia Computer No. Lietz 3626-25
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Loftus Company Rules
Loftus Alcohol Proofing Double Slide Rule
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Loga Rules
Loga Topo 6400 A o/oo Stadia Circular Rule
Loga 30 T t duplex Log Log Circular Rule
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Logar Rules
Logar Thermotechn 2512 Darmstadt
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Logarex Rules
Logarex 27203 Darmstadt 5"
Logarex 27205 Log Log Duplex 5"
Logarex 27205 Log Log Duplex 5", Example 2
Logarex 27402-III Elektro
Logarex 27402-X Elektro
Logarex 27403-II Darmstadt
Logarex 27403-X Darmstadt
Logarex 4542-27402 Elektro
Logarex 4542-27403 Darmstadt
Logarex 4542-27404 (for machining calculations
Logarex 27601 Aviation Navigation Slide Rule LNP-56
Logarex 27601 Aviation Navigation Slide Rule LNP-56, Example 2
Logarex 27602 Log Log Duplex
Logarex 27602-II Exponent Log Log Duplex
Logarex 27607-I Studio Duplex
Logarex 27608 Premiant, System Dr. Pleskot
Logarex 27729 Electrical
Logarex 27730 Gas Pipeline Slide Rule
Translation of instructions for Logarex 27730 Gas Pipeline Slide Rule
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Lutz Rules
Lutz 151C
Lutz 151P
Lutz 252
Lutz 300B Log Log Vector Duplex
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Magnameta
Magnameta International Petroleum Tonnage Calculator
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Coleman J. Major
Coleman J. Major Liquid Flow Slide Rule
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Makeba Rules
Makeba Kombinator Pencil Slide Rule
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Marcantoni Rules
Marcantoni 25 RE Electro-Rietz
Marcantoni 25 CH Chemistry
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Masoneilan Rules
Masoneilan Valve Slide Rule
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Mear Rules
Mear Rotoscale Circular Slide Rule
Mear Ducting Calculator for Heating, Ventilation, Pneumatic Handling, etc.
Mear Domestic Central Heating Calculator
Mear Gas Flow Calculator for Cast Iron & Steel Pipes, Model GM4 - Metric
Mear Gas Flow Calculator for Cast Iron & Steel Pipes, Model G4 - Imperial
Mear Gas Flow Calculator for Plastic Pipes
Mear Helical Spring Calculator
Mear Industrial Central Heating Calculator
Mear Steam Flow Calculator for Flow at Pressure or Vacuum
Mear Water Flow Calculator for Pipes, Ducts, Sewers, and Open Channels
Mear Water Flow Calculator for Bitumen Lined Steel Pipes
Mear Streamline Flow Calculator for Viscous Liquids
Mear Pipe Flow Calculator for Liquids and Gases (Turbulent Flow)
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Micador Rules
Micador 530
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Mcronta Rules
Micronta 150 Duplex Decitrig Log Log
Micronta 157 Electrical Duplex Vectorlog
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Francis T. Miles Nomographs
Francis T. Miles Heat of Vaporization Indices Nomograph
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Monarch Rules
Monarch SLR-5
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Musigraph Rules
Musigraph 100 Composers' and Arrangers' Slide Rule
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Nestler Rules
Nestler 29/52 Duplex Log Log
Nestler 0129 Polymath Duplex 5"
Nestler 0130 Multimath Duplex 5"
Nestler 0210 Darmstadt
Nestler 0218 Darmstadt
Nestler 0250 Multimathic
Nestler 0234 Rietz
Nestler 0254 Delta
Nestler 0260 Mecanica
Nestler 0281 Geometer 400°
Nestler 0290 Log Log Duplex
Nestler 0291 Polymath Duplex (metal end braces)
Nestler Polymath Duplex (plastic end braces)
Nestler Elemath
Nestler 0292 Multimath Duplex
Nestler 0297 Electronic 1
Nestler 21 Darmstadt
Nestler 21a Darmstadt 20 inch
Nestler 27/a Precision
Nestler 33 Chemiker
Nestler 37 Electro
Nestler System Landis & Gyr Electric
Nestler 37 Electro, Example 2
Nestler 0320 Oilrule by Dr. Schmeling
Nestler 0330 Chemiker
Nestler 0370 Electro
Nestler Total KG Foerstner Radiation Protection Slide Rule
Nestler Star Slide Rule and Reference Tables
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Nobema Rules
Nobema "Durer" 5914 Elektro
Nobema "Durer" 5970 (Log Log type)
Nobema "Durer" 5970P (Log Log type)
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Norma
Norma Mercuria 190
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North American Aviation
North American Aviation Matrix Rule
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Norton & Gregory Rules
Norton & Gregory Time/Rate Slide Rule
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Novotni Rules
Novotni Flat Rolled Slide Rule
Novotni Time Slide Rule
Novotni Paper Box Board Rule
Novotni Flat Steel Weight Slide Rule
Novotni Weight Slide Rule
Novotni Weight Slide Rule, Example 2
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Nuclear Chicago
Nuclear Chicago Nuclearule
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Olson Rules
Olson TL-373
Olson TL-473
Olson TL-472 Electro
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Omega Rules
Omega 151
Omega DT-1015 (same as Relay 153 or Relay DT-1015)
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Otis King Rules
Otis King Model K
Otis King Model L
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Palco Rules
Palco 157 (like Alvin 1157, a R/R variant)
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Patrick Corporation Rules
Patco Mark IV Log Log
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Puregas Equipment Company Rules
PEC 531 Cable Pressurization Computer
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Perrygraf Slide Charts
Perrygraf Allied Parallel Resister Series Capacitor Calculator
Perrygraf Andrew Antenna & Propagation Computer
Perrygraf ARRL L/C/F Calculator & Coil Winding Calculator
Perrygraf ARMCO Sewer Pipe Calculator
Perrygraf Black, Sivalls, & Bryson Control Valve Size Calculator
Perrygraf Boonton Electronics Slide Rule for Reactance, Q, and Dissipation Factor
Perrygraf Boonton Electronics Resonance Slide Rule
Perrygraf C.I.P.R.A. Pipe Network/Friction Loss Slide Calculator
Perrygraf C.I.P.R.A. Loss of Head Slide Rule
Perrygraf Collins Radio Space Systems Calculator
Perrygraf Feild's Hydraulic Calculator, based on Manning formula
Perrygraf Concrete Pipe Assoc. of MI Hydraulic Slide Rule for Sewer Design
Perrygraf Electro-Optics Infrared Radiation Calculator
Perrygraf EG&G Judson Infrared Radiation Calculator
Perrygraf Giannini Controls Corporation Radiation Dose Guide
Perrygraf(?) Irving Goldfein Sewer Design Slide Rule
Perrygraf KDI Pyrofilm Reflectometer Calculator
Perrygraf Mallory Slide Rule for Capacitor Functions
Perrygraf Ohmite Parallel Resistance Calculator
Perrygraf Westinghouse Power chek✓Up Calculator
Perrygraf Pratt & Whitney Gas Turbine Computer
Perrygraf PRD Electronics RF and Power Loss Calculator
Perrygraf Probability Slide Rule, for Measurement Analysis Corporation
Perrygraf Payne Residential Heating & Cooling Load Calculator
Perrygraf Shure Reactance Slide Rule
Perrygraf Sterer Hydraulic-Pneumatic Pressure Drop Calculator
Perrygraf TACO Parabolic Antenna Calculator
Perrygraf Victoreen Health Physics Slide Rule
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Pickett Rules
Pickett & Eckel Model No 1 Deci-point (Magnesium)
Pickett & Eckel Model No 2 Deci-Log Log (Magnesium)
Pickett Model B1 Powerlog Dual Base Exponential
Pickett Model 2 Deci-Log Log (Aluminum)
Pickett Model 2 Example 2 (Magnesium)
Pickett N2-T Log Log Speed Rule
Pickett Model 3 Deci-Multiphase (Magnesium)
Pickett Model 3T Dual Base Log Log
Pickett N3-T Power Log Exponential Log Log Dual Base
Pickett N3-ES Power Log Exponential Log Log Dual Base
Pickett N3p-ES Power Log Exponential Log Log Dual Base 5"
Pickett X-3 Power Log Exponential Log Log Dual Base
Pickett & Eckel Model 4 Deci-Log Log Vector Hyperbolic (Magnesium)
Pickett 4-ES Dual Base Log Log Reciprocal Scale (Vector Hyperbolic)
Pickett N4-ES Dual Base Speed Rule Vector Type Log Log
Pickett N4p-ES Dual Base Speed Rule Vector Type Log Log 5"
Pickett N-4-T Log Log Vector Hyperbolic
Pickett N-4-T, Example 2, Vector Type Log Log
Pickett X-4 Vector Type Log Log Dual Base Speed Rule
Pickett Model 6-T Statistical Quality Control (Magnesium)
Pickett Model 6-T Statistical Quality Control (Aluminum)
Pickett 7-T Pipe Flows, Service Pipeline Company
Pickett N7-T Pipe Flows, Service Pipeline Company
Pickett Model 9 Texas Eastern Transmission Corporation
Pickett Model 14 Military Slide Rule
Pickett N15-T Georgia Iron Works Hydraulic Slide Rule
Pickett N-16-ES Electronic Dual Base Speed Rule
Pickett Model 17 Electro Optical Blackbody Radiation Slide Rule
Pickett C18-T Collins Microwave Transmission
Pickett C18-T Collins Microwave Transmission Insert Cards
Pickett C19-T Collins Microwave Transmission
Pickett Model 21 Real Estate Costimator
Pickett 50-1 Gregor Lag Displacement Computer
Pickett Model 100 Douglas Sky Rule
Pickett 111-ES Circular
Pickett 140 Microline
Pickett N500-ES Hi-Log Log Duplex
Pickett N500-ES Hi-Log Log Duplex, Example 2
Pickett 500-T Orthophase Log Log
Pickett 500-T Orthophase Log Log, Example 2
Pickett N500-T Hi-Log Log Duplex
PIckett 510-T Business & Finance
Pickett N515-T Electronic - Cleveland Institute of Electronics
PIckett 520-T Air Force Aerial Photo Rule Type A-1
Pickett N525-ES Statistics Rule
Pickett 531-ES Log Log Trig Electronic - Capitol Radio Engineering Institute
Pickett N535-ES Electronics Technician
Pickett N540-T Pratt & Whitney Aircraft
Pickett 550-T Warren-Knight Weight Rule No. 1373-ET
Pickett 550-ES Warren-Knight Weight Rule No. 1373-C
Pickett 575 M W Kellogg Hydraulic Slide Rule
Pickett N600-ES Log Log Duplex 5"
Pickett N610-ES Log Log Speed Rule, Hydraulic Variant, American Pipe & Construction Co., 5"
Pickett 800-ES Log Log Synchro-Scale
Pickett 800-ES Log Log Synchro-Scale, Example 2
Pickett 800-T Log Log Synchro-Scale
Pickett 803-ES Dual Base Log Log Synchro-Scale
Pickett N808-T Standard Marine Fuels
Pickett 902-T Simplex Trig
Pickett N902-ES Simplex Trig
Pickett N906-T National Fire Sprinkler Corp. Hydraulic Rule
PIckett 1011-ES Trig Exponential Speed Rule
Pickett N1020-ES National Radio Institute
Pickett 1025-T Associated Spring Corporation
Pickett N-1041-G Fisher Universal Valve Sizing Rule
Pickett N-1041-GP Fisher Universal Valve Sizing Rule
PIckett Model N-1050 Fuller Traffic Slide Rule
PIckett N1072-ES Spring Design Slide Rule for Connecticut Spring Co.
Pickett Model 1080-T (35350 Pocket Calculator for Orifice Meters, The Refinery Supply Company)
PIckett Model 1084 Resistance Design Slide Rule
PIckett Model 1084 Resistance Design Slide Rule, Example 2
PIckett N1090-ES Connor Spring Slide Rule
Pickett Fisher Control Valve Sizing Rule
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Post Rules
Post 1447 Improved Mannheim
Post 1450 Versatrig
Post 1459 Universal Log Log Duplex
Post 1460 Versalog (no 'A' scale)
Post 1460 Versalog II (with 'A' scale)
Post 1461 Electronic
Post 1461 Versalog 5"
Post 1461 Versalog II 5"
Post 1462 Powertrig
Post 1462H Postrig
Post 1490 Control Engineer's Rule for Freq. Resp. Calculations
Post 1491 Chem Rule
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H. R. Potter Rules
H. R. Potter Raw Materials Calculator
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Precision Scale Inc.
Precision Scale Inc. Air Force Aerial Photo Rule Type A-1
Precision Scale Inc. Spring Design Rule for Spring Engineers Inc.
Precision Scale Inc. Model 1751 Log Log 10 Hyperbolic
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Radium Chemical Company Rules
Radium Chemical Company Radium Exposure Calculator 1948
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Ratcliffe Rules
Ratcliffe Spring Calculating Slide Rule
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Reiss Rules
Reiss Darmstadt
Reiss Elektro
Reiss 3214 Darmstadt Record
Reiss 3223 Progress
Reiss 3227 Duplex Hyperbolic
Reiss 3236 Darmstadt
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Relay Rules
Relay 150 Log Log Decitrig
Relay 150 Log Log Decitrig Labeled TL-214
Relay 151
Relay 153
Relay 157
Relay 158
Relay DE-1008 Expert Electronic Engineer
Relay DT-1015 Duplex Trig
Relay DT-1065 Log Log Duplex
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Richardson Rules
Richardson Pantocrat Dual Slide
Richardson Pantocrat, Example 2, with four slides
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Ricoh Rules
Ricoh 150 Engineer's
Ricoh 151 Engineer's
Ricoh 153 Engineer's
Ricoh OD-151-D Engineering Rule
Ricoh 156 (Electronics type)
Ricoh 159 hyperbolic/electronics type
Ricoh 1051 SE
Ricoh 1053-1 Engineering Rule
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Ridgway's Rules
Ridgway's 1543 Darmstadt-type rule
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Ross Engineering Rules
Ross Engineering Pipe Size Selector for Steam and Water
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Royal Rules
Royal Ecola Nr.1053
Royal 1081
Royal 1091 Executive
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Russian Rules
Leningrad 5161-57 r. 1971, Closed Simplex Log Log
TU 250-14P r. 1979 All Plastic, Closed Simplex Log Log
KLPZ 5161-72 r. 1978, Open Duplex Log Log
Leningrad 5161-72 r 1977, Open Duplex Log Log
KLPZ 5161-57 r. 1962 Dual Slide
KL-1 'Sunrise' Pocket Watch Calculator
LFAI Metro Irrigation, r. 1964, Closed Simplex
KLPZ Hydraulics Calculations, Open Duplex
Russian Pilot's Flight Slide Rule
Russian Circular Slide Chart: Periodic Table Data
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Sanderson Rules
Sanderson SC-3B Flight Computer
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Sandia Corporation Rules
Sandia Corporation Cumulative Binomial Distribution Computer
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Schacht & Westerich Rules
Schacht & Westerich System Cuntz
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SeeGee Solutions Rules
SeeGee Solutions, Center of Gravity Calculator for Pilatus 12-45
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Scientific Instruments Inc Rules
SIC 151 Engineering
SIC 1510 Log Log Decatrig
SIC 5510 Log Log Decatrig 5"; short version of SIC 1510
SIC 1530 Technilog
SIC 1530-A
SIC 1570 Electro Vector Log Log
SIC 1580 Electro Vector Log Log Decatrig (Electrical and Electronic Engineering)
SIC 1610-D Professional (Circular)
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SIDA Rules
SIDA Ruyi 1001
SIDA Ruyi 1002
SIDA Ruyi 1083
SIDA 1098 Electro
SIDA Ruyi 6201
SIDA Ruyi 6202 Log Log Duplex Trig
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Skala Rules
Skala SLPP
Skala SLE Elektro
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Sans & Streiffe Rules
S&S 311 Log Log Duplex
S&S 312 Engineering
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Sillcocks Miller Company Rules
Sillcocks Miller AT&T Guy Rule
Sillcocks Miller RHM Fluid Power Calculator
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Simplon Rules
Simplon Bilateral Log Log
Simplon Electro Log Log
Simplon Major Log Log
Simplon Primary Log Log
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Slyd-Rul Slidecharts
Slyd-Rul Elemental Slide Chart
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Somar Laboratories Rules
Somar Laboratories Spectro-Rule for X-Ray Spectroscopy
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W. H. Smith Rules
Smith A505
Smith Log Log Trig
Smith Log Log Trig, Example 2, with 'K' scale
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Spirule Company Rules
Spirule
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Spitzglass Rules
Spitzglass Flow Calculator
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Staedtler Mars Rules
S-M 54401 Darmstadt
S-M 54408 Log Log Duplex
Staedtler-Noris 54452 Log Log
S-M 54408N Log Log Duplex
S-M 544LL AV Overhead Projector Slide Rule
S-M 944-24 Log Log Duplex
S-M 944 28 Super Log
S-M 544 28 Log Log Duplex
S-M 944 82
S-M 544 DLL
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Staniland Rules
Stanliand Pipeline Slide Rule
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Stanley Rules
Stanley Fuller Model 1
Stanley Fuller Model 2
Stanley Complex Number Slide Rule
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Sterling Rules
Sterling 587 5"
Sterling 594 Decimal Trig Multi Log
Sterling Foxboro Flow Rule
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Tacro Rules
Tacro 4582/1000 Log Log Decimal Trig
Tacro 4595 Log Log Duplex
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Tecnostyl Rules
Tecnostyl 40/D Darmstadt-type
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Tehnolemn Rules
Tehnolemn Politehnica (Electro-type slide rule)
Tehnolemn Electrotehnica (Electro-type slide rule)
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Teknor Rules
Teknor 1081 Gymnasium
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Tektronix Rules
Tektronix Circuit Computer
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Teledyne Post Rules
Teledyne 44CA-600 Versalog II
Teledyne 44CB-260, Hemmi P452
Teledyne Post 1414 Beginners (Hemmi P280)
Teledyne Post 1420 (Hemmi P261)
Teledyne Post 1422 (Hemmi P262)
Teledyne Post 1426 (Hemmi P452)
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Thomas Rules
W. A. Thomas Universal Hydraulic Sliderule
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J. Thomlinson Ltd.
Thomlinson Equivalent Paper Slide Scale
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P.I.C./British Thornton Rules
Thornton AA 010 Comprehensive
Thornton AD 050 Log Log
Thornton AD 150 Advanced
Thornton 172/PC17 Student's Log Log w/differential trig scales
Thornton K285 198Hg Wavelength Shifts look-up tool
Thornton P.I.C. 121 Differential Electro
Thornton P.I.C. 131/P.C. 18 Differential Electro
Thornton P.I.C. P133 Differential Electro
Thornton P144 A. C. Electrical
Thornton P144 A. C. Electrical, Example 2
Thornton P221 Comprehensive Duplex
Thornton P241 Log Log Duplex
Thornton P271 Log Log
PIC 101 Simplex
PIC 271 Log Log Simplex
Thornton P.I.C 3649
Thornton F5100 Radiation Rule
Thornton? Clementson Steam Pipe Sizing Slide Rule
Thornton 0552/1448 Speed-Time-Distance Nautical Slide Rule
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Tianjin Rules
Tianjin 6502 4.5" pocket rule
Tianjin 6504 Wireless and Electro-Technician
Tianjin 6508 Wireless and Electro-Technician (5" version of 6504)
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U. G. I. Contracting Company
U.G.I. Contracting Company U.G.I. Gas Heating Value Computer
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UGK Rules
UGK Rule for Reinforced Concrete Calculations
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Unique Rules
Unique Dualistic High Speed
Unique Electrical
Unique Universal
Unique Universal I
Unique Universal I, 5 inch
Unique Universal II
Unique Universal II Example 2
Unique Brighton
Unique Commercial
Unique Log Log
Unique Navigational
Unique Ten-Twenty
Unique Harfield Weight Calculator
Unique Slide Rule for Tube Making and Deep Drawing
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Union Instrument Company Rules
Union Insrument Co No. 2050 Air Force Aerial Photo Rule Type A-1
Union Instrument Corporation Photo Interpretation Kit - Pocket Type
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U.S. Army Rules
U. S. Army Course and Distance Computer
U. S. Army Model M1 Slide Rule for Solution of Triangles
U. S. Army Log Log Slide Rule
U. S. Army Air Force Line of Sight Indicator C-544-2, Mitchell Field, NY
U. S. Army Graphic Firing Table, 155mm Howitzer
U. S. Army Graphic Firing Table, 155mm Howitzer, M64 Charge System
U. S. Army Graphic Firing Table, 155mm Howitzer, Illuminating Projectile
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U.S. Navy Rules
U. S. Navy Nautical Slide Rule, Mark 1, Mod 0
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UTO Rules
UTO 551U Darmstadt
UTO 551U Electro
UTO 631U 5" (shortened version of 931U)
UTO 901 Darmstadt
UTO 901U Real Nr. 2, System H-Croon
UTO 0932 Charvoz Poly-e Super
UTO 0930 Studium
UTO Poly-e 930U
UTO Poly-e 0930U labeled "Chemstrand"
UTO 931U Poly-e Nr. 3
UTO 931U Example 2 (plastic end braces)
UTO Radiographic Exposure Calculator
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Vetoli or Vetoly Rules
Vetoli Log Log Hyperbolic Duplex rule
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VEB Mantissa or Meissner KG Rules
Meissner KG Trim
Meissner KG Darmstadt
Meissner KG Variant
Meissner KG Viscorule
Meissner KG Electric
Meissner KG Galvanotechnik
VEB Mantissa 1731 178 Masse (for density/weight caculations).
VEB Mantissa 1731 421 Record
VEB Mantissa 1731 573/4 Variant II
VEB Mantissa 1731 523/4 Darmstadt II
VEB Mantissa Feutron Klima 1802 Humidity/Moisture Content Calculations
VEB Mantissa Feutron Klima 1802 Humidity/Moisture Content Calculations, Example 2
VEB Mantissa Freiberg Fuel Institute Methane Combustion Rule
VEB Mantissa Artillery Slide Rule
VEB Mantissa Pilot's Slide Rule
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V&E Manufacturing Company, Inc.
VEMCO Model 171 Dyna - Log Log Hyperlog
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Warren-Knight Company
Warren-Knight Wakco Novotni Weight Rule No. 1373-B
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Weber Rules
Weber 04293 (same as Aristo Charvoz-Roos SR-III Trig-O-Log or Berger C2138M)
Weber 42968 (same as Aristo Studio 0968
Weber 42970 (same as Aristo Charvoz Miultilog 970
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White & Gillespie Rules
W&G 432 Dualface Comprehensive
W&G 454 Dualface Artillery & Survey Model
W&G 476 Dualface Trigonometrical
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J. H. Weil Rules
Weil 1140 Polylog
Weil Model 1917 Military Slide Rule
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Whitehead & Hoag Rules
Whitehead & Hoag Simplex Wiring Computer
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Wichmann Rules
Wichmann Richtscheiber A WWII Artillery Rule
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Willsonn Computer Rules
Willsonn Sonney Orifice Computer
Willsonn Pipeline Computer
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Xuesh Rules
Xuesh 6171 Hyperbolic Log Log Duplex
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Xylem Rules
Xylem Bell & Gossett System Syzer Hydronics Calculator
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Yokogama Electric Works
Yokogama Electric Works Gas Slide Rule
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Locations visiting this site since 5-6-14

Steve K. Seale, Nashville TN, USA, 2024