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Keuffel & Esser K+E Slide Rule 68-1210 Log Log Duplex Decitrig With Leather Case

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Vintage K&E Slide Rule Manual Keuffel & Esser No. 4081 Log Log Duplex Decitrig

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K&E Keuffel & Esser 4080-3 Log Log Duplex Decitrig Slide Rule w/ Leather Case

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Keuffel & Esser K&E N4080-3 Log Log Duplex Trig Slide Rule W/ Leather Case

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K-E Log Log Duplex Decitric Slide Rule 4081-3S

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Vintage MCM K&E Keuffel & Esser Co. 4081-3 Log Duplex Slide Rule and Case

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Keuffel & Esser K&E 1947 Log Log Duplex Vector Slide Rule Leather Case N4083-3

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Keuffel & Esser Co N.Y. USA K&E 4092-3 Slide Rule

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K&E Keuffel & Esser 68-1130 Slide Rule w/ Leather Case Deci Lon 5

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Keuffel & Esser K&E 4058W Slide Rule w/ Case Vintage Engineering Calculator USA

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K & E N4088-3S Slide Rule + Leather Case Keuffel &Essler Company Vintage 1940’s

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Vintage K&E Keuffel & Esser Model 4081-3 Slide Rule with Case Copyright 1947

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K & E N4053-3 Slide Rule + Magnifier + Leather Case Keuffel Essler Company Nice

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K & E N4053-3 Slide Rule + Magnifier + Leather Case Keuffel Essler Company Nice

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Vtg Keuffel & Esser K&E 1940s DORIC Slide Rule Brown Leather Case USA 2783

Vtg Keuffel & Esser K&E 1940s DORIC Slide Rule Brown Leather Case USA 2783

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DealVintage Keuffel & Esser Student's Slide Rule 4058 USA Wood Math Tool

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VTG K+E Keuffel & Esser Pocket Slide Rule 4161-1 w/Leather Sleeve & Manual 1952

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Deal1960 Vintage Keuffel & Esser K+E 68 1486 Slide Rule Leather Case & Instructions

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Vintage SLIDE RULE K-E #681892 Case & Manual 1960s Keuffel-Esser K-12 Prep MINT

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