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Keuffel and Esser Linear slide rule
2004.010.0023
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0025
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig N9081-3 10" Linear slide rule
2004.010.0026
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4091-3 10" Linear slide rule
2004.010.0027
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig N4081-3 10" Linear slide rule
2004.010.0028
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Vector N4083-3 10" Linear slide rule
2004.010.0029
Keuffel & Esser Co.
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Keuffel and Esser Polyphase duplex with clam shell cursor 4071-3 10" Linear slide rule
2004.010.0030
Keuffel & Esser Co.
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Keuffel and Esser Polyphase duplex Trig 4070-3 10" Linear slide rule
2004.010.0031
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule
2004.010.0032
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex Decitrig 9071-3 10" Linear slide rule
2004.010.0033
Keuffel & Esser Co.
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Keuffel and Esser Duplex Merchant's Slide Rule 4095 10" Linear slide rule
2004.010.0034
Keuffel & Esser Co.
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Keuffel and Esser Kurtz Psychrometric Slide Rule 4175 10" Linear slide rule
2004.010.0035
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4080-1 5" Linear slide rule
2004.010.0036
Keuffel & Esser Co.
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Keuffel and Esser F963 Linear slide rule
2004.010.0037
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4081-1 5" Linear slide rule
2004.010.0038
Keuffel & Esser Co.
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Keuffel and Esser F961 Linear slide rule
2004.010.0039
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4081-1 5" Linear slide rule
2004.010.0040
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0041
Keuffel & Esser Co.
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Ecco Linear slide rule
2004.010.0042
Ecco Co.
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Keuffel and Esser Log Log Duplex Decitrig Special Radio Slide Rule 4082-3 10" Linear slide rule
2004.010.0044
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule
2004.010.0045
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule
2004.010.0046
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Trig 4090-3 10" Linear slide rule
2004.010.0047
Keuffel & Esser Co.
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Keuffel and Esser Polyphase duplex with clam shell cursor 4071-3 10" Linear slide rule
2004.010.0048
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4080-3 10" Linear slide rule
2004.010.0049
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Merchant's Slide Rule 4094 10" Linear slide rule
2004.010.0050
Keuffel & Esser Co.
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Keuffel and Esser Duplex Merchant's Slide Rule 4095-3 10" Linear slide rule
2004.010.0051
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-2 8" Linear slide rule
2004.010.0052
Keuffel & Esser Co.
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Keuffel and Esser Polyphase duplex with chisel cursor 4070-1 10" Linear slide rule
2004.010.0053
Keuffel & Esser Co.
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Keuffel and Esser Mannheim "EverThere" Slide rule 4097D 5" Linear slide rule
2004.010.0055
Keuffel & Esser Co.
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Keuffel and Esser Mannheim "EverThere" Slide rule 4097 5" Linear slide rule
2004.010.0056
Keuffel & Esser Co.
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Keuffel and Esser Doric linear slide rule
2004.010.0057
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule 4059 8" Linear slide rule
2004.010.0059
Keuffel & Esser Co.
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Keuffel and Esser Plastic Polyphase Mannheim 9061-1 5" Linear slide rule
2004.010.0060
Keuffel & Esser Co.
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Keuffel and Esser Polyphase duplex with chisel cursor 4070-1 10" Linear slide rule
2004.010.0061
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0062
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0063
Keuffel & Esser Co.
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Keuffel and Esser Morrison Radio Engineer's Slide Rule 4138 10" Linear slide rule
2004.010.0064
Keuffel & Esser Co.
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Keuffel and Esser Kissam Stadia Slide Rule 4143 10" Linear slide rule
2004.010.0065
Keuffel & Esser Co.
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Keuffel and Esser Plastic Log Log Duplex Decitrig N9081-3 10" Linear slide rule
2004.010.0067
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Roy Lance Electrican's Slide Rule N4133 8" Linear slide rule
2004.010.0068
Keuffel & Esser Co.
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Keuffel and Esser Kissam Stadia Slide Rule 4143 10" Linear slide rule
2004.010.0069
Keuffel & Esser Co.
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Keuffel and Esser Cooke Radio Rule 4139 10" Linear slide rule
2004.010.0070
Keuffel & Esser Co.
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Keuffel and Esser Military slide rule
2004.010.0071
Keuffel & Esser Co.
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Keuffel and Esser Kurtz Psychrometric Slide Rule 4175 10" Linear slide rule
2004.010.0072
Keuffel & Esser Co.
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Keuffel and Esser Mannheim "EverThere" Slide rule 4097D 5" Linear slide rule
2004.010.0073
Keuffel & Esser Co.
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Keuffel and Esser Mannheim "Pocket" Slide rule 4098A 5" Linear slide rule
2004.010.0075
Keuffel & Esser Co.
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Keuffel and Esser Mannheim "EverThere" Slide rule 4097C 5" Linear slide rule
2004.010.0076
Keuffel & Esser Co.
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Keuffel and Esser Duplex Power Computing Slide Rule N4135 7" Linear slide rule
2004.010.0077
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0078
Keuffel & Esser Co.
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