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Keuffel and Esser Linear slide rule 2004.010.0291 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0292 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim 4055 10" Linear slide rule 2004.010.0303 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase Duplex with chisel cursor 4060-3 5" Linear slide rule 2004.010.0304 Keuffel & Esser Co. View |
Nestler No11 Linear slide rule 2004.010.0305 Nestler View |
Nestler No11 E Linear slide rule 2004.010.0306 Nestler View |
equal part tabular slide rule calendar 2004.010.0307 Wrico Lettering Instruments View |
The Foxboro Company linear slide rule 2004.010.0308 The Foxboro Company 1935 View |
Indeco Linear slide rule 2004.010.0310 Indeco View |
Indeco Linear slide rule 2004.010.0311 Indeco View |
Lawrence 10-B Linear slide rule 2004.010.0312 Lawrence View |
Du Mont 8-B Linear slide rule 2004.010.0313 Du Mont View |
Lawrence 8-B Linear slide rule 2004.010.0314 Lawrence View |
Hemmi No.34 Linear slide rule 2004.010.0316 Hemmi Slide Rule Co. View |
Hemmi Slide Rule Co. No. 2974N Linear slide rule 2004.010.0317 Hemmi Slide Rule Co. View |
Keuffel and Esser Mannheim Stadia Slide rule 4100 10" Linear slide rule 2004.010.0318 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0319 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0320 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim with fine divisions 4041F 10" Linear slide rule 2004.010.0326 Keuffel & Esser Co. View |
Keuffel and Esser Brick-O-Meter Linear slide rule 2004.010.0330 Keuffel & Esser Co. 1938-08-05 View |
Keuffel and Esser Mannheim with glass cursor 4041 10" polyphase duplex Linear slide rule 2004.010.0336 Keuffel & Esser Co. View |
Hemmi Slide Rule Co. Linear slide rule 2004.010.0365 Hemmi Slide Rule Co. View |
Keuffel and Esser Linear slide rule 2004.010.0370 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0371 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0373 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0374 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4091-3 10" Linear slide rule 2004.010.0376 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector 4093-3 10" Linear slide rule 2004.010.0377 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector 4093-3 10" Linear slide rule 2004.010.0378 Keuffel & Esser Co. View |
Keuffel and Esser Special Radio Linear slide rule 2004.010.0379 Keuffel & Esser Co. View |
2004.010.0400 View |
Keuffel and Esser Linear slide rule 2004.010.0405 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector 4093-3 10" Linear slide rule 2004.010.0406 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase duplex with clam shell cursor and Trig scales 4071T 10" Linear slide rule 2004.010.0415 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule 2004.010.0416 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0418 Keuffel & Esser Co. View |
Keuffel and Esser C987 Linear slide rule 2004.010.0429 Keuffel & Esser Co. View |
Keuffel and Esser Residential Building Cost Slide rule 2004.010.0430 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4081-3 10" Linear slide rule 2004.010.0431 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0432 Keuffel & Esser Co. View |
ACU Rule Linear slide rule 2004.010.0433 ACU Rule View |
Engineering Instruments, Inc. 10-B Linear slide rule 2004.010.0434 Engineering Instruments, Inc. View |
ACU Rule Linear slide rule 2004.010.0435 ACU Rule View |
E.B.B.&S. 100 Linear slide rule 2004.010.0436 E.B.B.&S. View |
Dietzgen 1767P National Linear slide rule 2004.010.0437 Dietzgen View |
Keuffel and Esser Linear slide rule 2004.010.0439 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0440 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0443 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0444 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim Roy Lance Electrican's Slide Rule N4133 8" Linear slide rule 2004.010.0445 Keuffel & Esser Co. View |
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