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Circular Slide Rule


Concise No. 270 Circular Slide Rule. Plastic.12 Scales. Excellent Condition.

$34.95


Union Carbide circular slide rule in case w/ instructions

$8.61


Stadia Computer Circular Slide Rule+original pack. USA - C Thru Ruler Comp.

$22.00


8-1/4" Gilson Binary Circular Slide Rule

$40.00


Eugene Dietzgen 1936 Binary Circular Slide Rule With Case And Manual

$39.95


Fractron Circular Slide Rule Vtg Fraction Of An Inch Adding Machine Calculator

$34.99


CONCISE CIRCULAR SLIDE RULE N.28 WITH MANUAL

$15.99


Concise No. 380 Circular Slide Rule - Radio Computer

$40.00


Vintage Dresser Atlas Circular Slide Rule and Reference Tables Sama Etani

$35.00


Concise No. 270N NEW & UNUSED Circular Slide Rule. Duplex. Plastic. 13 Scales.

$52.00


Vintage Pickett Circular Slide Rule 101-C Dial Rule With Case

$59.95


Slide rule - Vintage Circular Pipe Flow Calculator

$40.00


Vintage Concise Circular Slide Rule No.28 Gates Rubber

$35.00


Lietz Dial Rule Circular Slide Rule (Pickett 101-C)

$45.00


Concise Circular Slide Rule 28N Vintage Case Instructions Made in Japan 28 N

$22.99


CONCISE 1960s CONVERSION TABLES ROW ROUND CIRCULAR SLIDE RULE

$22.95


CONCISE SCIENCE TABLES AND CIRCULAR SLIDE RULE SAMA & ETANI 1960s

$19.99


Vintage Fullerton Acudial Circular Slide Rule No.1452 - Japan

$24.99


Vintage ADEL Division Circular Slide Rule

$20.00


Scientific Instruments Co. Circular Slide Rule, Model 1610 CASE

$189.99


Aristo Aviat No. 610 Circular Slide Rule / Flight Calculator / Dennert

$85.00


Vintage Fullerton Acudial Circular Slide Rule No.1450 Japan

$24.99


Vintage Soviet circular slide rule KL-1 USSR Calculator Mathematical instrument

$59.99


Vintage Fearns Tank Capacity Circular Slide Rule Fearns Calculator

$36.00


Rare Howard Ackerman Farmers 1937 Circular Slide Rule

$29.99


Concise Circular Slide Rule No. 28 Case Instruction Booklet Japan

$12.90


Concise Chemical Tables and Circular slide rule

$26.00


1934 Mascot Circular Slide Rule with Pouch and Instructions

$35.00


Vintage Key Line Concise Circular Slide Rule Original Case & Instructions - GC

$24.00


Concise Conversion Tables and Circular Slide Rule Model CTCS-551

$22.95


1970 Concise Sama & Etani Model 90 Circular Slide Rule ENDCO Logo EVC

$20.00


Aristo No. 0602 Circular Slide Rule. 3 Scales. Plastic. Perfect Condition.

$40.00


1966 Concise Sama & Etani Model EE-112 Circular Slide Rule AC General Products

$27.99


Vtg Soviet Russian Circular Slide Rule Chemical Table Element Chemist Calculator

$9.99


Sama Etani Concise Circular Slide Rule 600 ST "Chemistry is Chool" Japan

$39.95


Logomat Circular Slide Rule. 48mm(1-7/8") Diam. Metal. 4 Spiral Scales. Germany.

$83.00