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Keuffel and Esser Log Log Duplex Decitrig 4091-3 10" Linear slide rule 2004.010.0027 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig N4081-3 10" Linear slide rule 2004.010.0028 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector N4083-3 10" Linear slide rule 2004.010.0029 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase duplex with clam shell cursor 4071-3 10" Linear slide rule 2004.010.0030 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase duplex Trig 4070-3 10" Linear slide rule 2004.010.0031 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule 2004.010.0032 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4080-1 5" Linear slide rule 2004.010.0036 Keuffel & Esser Co. View |
Keuffel and Esser F963 Linear slide rule 2004.010.0037 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4081-1 5" Linear slide rule 2004.010.0038 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4081-1 5" Linear slide rule 2004.010.0040 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig Special Radio Slide Rule 4082-3 10" Linear slide rule 2004.010.0044 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule 2004.010.0045 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule 2004.010.0046 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Trig 4090-3 10" Linear slide rule 2004.010.0047 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase duplex with clam shell cursor 4071-3 10" Linear slide rule 2004.010.0048 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Decitrig 4080-3 10" Linear slide rule 2004.010.0049 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim Merchant's Slide Rule 4094 10" Linear slide rule 2004.010.0050 Keuffel & Esser Co. View |
Keuffel and Esser Duplex Merchant's Slide Rule 4095-3 10" Linear slide rule 2004.010.0051 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase Duplex 4088-2 8" Linear slide rule 2004.010.0052 Keuffel & Esser Co. View |
Keuffel and Esser Polyphase duplex with chisel cursor 4070-1 10" Linear slide rule 2004.010.0053 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim "EverThere" Slide rule 4097 5" Linear slide rule 2004.010.0056 Keuffel & Esser Co. View |
Keuffel and Esser Doric linear slide rule 2004.010.0057 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim Beginner's Slide Rule 4059 8" Linear slide rule 2004.010.0059 Keuffel & Esser Co. View |
Keuffel and Esser Plastic Polyphase Mannheim 9061-1 5" Linear slide rule 2004.010.0060 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0062 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0063 Keuffel & Esser Co. View |
Keuffel and Esser Kissam Stadia Slide Rule 4143 10" Linear slide rule 2004.010.0065 Keuffel & Esser Co. View |
Keuffel and Esser Plastic Log Log Duplex Decitrig N9081-3 10" Linear slide rule 2004.010.0067 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim Roy Lance Electrican's Slide Rule N4133 8" Linear slide rule 2004.010.0068 Keuffel & Esser Co. View |
Keuffel and Esser Kissam Stadia Slide Rule 4143 10" Linear slide rule 2004.010.0069 Keuffel & Esser Co. View |
Keuffel and Esser Cooke Radio Rule 4139 10" Linear slide rule 2004.010.0070 Keuffel & Esser Co. View |
Keuffel and Esser Military slide rule 2004.010.0071 Keuffel & Esser Co. View |
Keuffel and Esser Kurtz Psychrometric Slide Rule 4175 10" Linear slide rule 2004.010.0072 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim "EverThere" Slide rule 4097D 5" Linear slide rule 2004.010.0073 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim "Pocket" Slide rule 4098A 5" Linear slide rule 2004.010.0075 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim "EverThere" Slide rule 4097C 5" Linear slide rule 2004.010.0076 Keuffel & Esser Co. View |
Keuffel and Esser Duplex Power Computing Slide Rule N4135 7" Linear slide rule 2004.010.0077 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0078 Keuffel & Esser Co. View |
Keuffel and Esser Mannheim "EverThere" Slide rule 4097D 5" Linear slide rule 2004.010.0079 Keuffel & Esser Co. View |
Keuffel and Esser Nordell Sewer slide rule 2004.010.0082 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0084 Keuffel & Esser Co. View |
Keuffel and Esser linear slide rule 2004.010.0085 Keuffel & Esser Co. View |
Keuffel and Esser Economic lot slide rule 2004.010.0089 Keuffel & Esser Co. View |
Keuffel and Esser C475 Linear slide rule 2004.010.0090 Keuffel & Esser Co. View |
Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule 2004.010.0093 Keuffel & Esser Co. View |
Keuffel and Esser Sperry Pocket Calculator 2004.010.0111 Keuffel & Esser Co. View |
Keuffel and Esser Universal Duplex Slide Rule 4090N 10" Linear slide rule 2004.010.0128 Keuffel & Esser Co. View |
Hudson's Horse Power Computing Scale 2004.010.0165 Keuffel & Esser Co. View |
Keuffel and Esser Circular slide rule 2004.010.0175 Keuffel & Esser Co. View |
Keuffel and Esser Linear slide rule 2004.010.0195 Keuffel & Esser Co. View |
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