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Keuffel and Esser Thacher's Calculating Machine Type II 4012 cylindrical
1983.002.002
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule
1983.004.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4081-5 20" Linear slide rule
1983.057.002
Keuffel & Esser Co.
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Keuffel and Esser Thacher's Calculating Machine Type II 4012 cylindrical
1983.060.001
Keuffel & Esser Co.
1936
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Keuffel and Esser polyphase linear 10" slide rule
1983.077.001
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule
1983.080.001
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Merchant's Slide Rule with feet and box N4096 20" Linear slide rule
1984.039.001
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Slide Rule, 12" linear.
1984.058.003
Keuffel & Esser Co.
1908
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Keuffel and Esser Thacher's Calculating Instrument 1740 cylindrical
1984.099.002
Keuffel & Esser Co.
1891-1899
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Keuffel and Esser Log Log Duplex Decitrig 4081-3 10" Linear slide rule
1985.011.008
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule
1985.011.009
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-2 8" Linear slide rule
1985.086.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule
1985.086.002
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig Plastic 4181-1 5" Linear slide rule
1985.086.004
Keuffel & Esser Co.
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Keuffel and Esser Plastic Polyphase Mannheim 9061-1 5" Linear slide rule
1985.096.001
Keuffel & Esser Co.
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Keuffel and Esser polyphase duplex decitrig 71-3
1986.032.004
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig Plastic 4181-1 5" Linear slide rule
1987.012.017
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Mannheim 4053-3N 10" Linear slide rule
1987.040.002
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4081-3 10" Linear slide rule
1988.002.003
Keuffel & Esser Co.
date unknown
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Keuffel and Esser Log Log Duplex 4092 10" Linear slide rule
1988.002.004
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule
1989.027.003
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Duplex 4088-3 10" Linear slide rule
1990.005.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule
1990.061.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4080-3 10" Linear slide rule
1990.061.002
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4081-5 20" Linear slide rule
1990.061.003
Keuffel & Esser Co.
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Keuffel and Esser 4035 8" linear slide rule
1992.052.004.1-.2
Keuffel & Esser Co.
c. 1910
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Keuffel and Esser Log Log Duplex Vector 4083-3 10" Linear slide rule
1993.012.002
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule
1995.024.003
Keuffel & Esser Co.
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Keuffel and Esser Favorite Mannheim 4054 10" Linear slide rule
1995.054.001
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Student's Slide Rule 4058 10" Linear slide rule
1996.010.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex Decitrig 4080-3 10" linear slide rule
1996.049.001
Keuffel & Esser Co.
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Keuffel and Esser Log Log Duplex 4092-3 10" Linear slide rule
1997.023.001
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Mannheim with fine divisions 4053-3F 10" Linear slide rule
2004.010.0001
Keuffel & Esser Co.
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Keuffel and Esser Mannheim 4056 10" Linear slide rule
2004.010.0002
Keuffel & Esser Co.
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Keuffel and Esser Linear slide rule
2004.010.0003
Keuffel & Esser Co.
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Keuffel and Esser Mannheim with fine divisions 4041F 10" linear slide rule
2004.010.0004
Keuffel & Esser Co.
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Keuffel and Esser linear slide rule
2004.010.0005
Keuffel & Esser Co.
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Keuffel and Esser linear slide rule
2004.010.0006
Keuffel & Esser Co.
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Keuffel and Esser F806 Linear slide rule
2004.010.0007
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule 4058C 10" Linear slide rule
2004.010.0008
Keuffel & Esser Co.
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Keuffel and Esser F808
2004.010.0009
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Stadia Slide rule N4100 10" Linear slide rule
2004.010.0010
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule N4058W 10" Linear slide rule
2004.010.0011
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Mannheim 4053-3 10" Linear slide rule
2004.010.0012
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule N4058W 10" Linear slide rule
2004.010.0013
Keuffel & Esser Co.
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Keuffel and Esser linear slide rule
2004.010.0014
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule 4059 8" Linear slide rule
2004.010.0015
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule 4059 8" Linear slide rule
2004.010.0016
Keuffel & Esser Co.
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Keuffel and Esser Polyphase Mannheim 4053-2 8" Linear slide rule
2004.010.0017
Keuffel & Esser Co.
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Keuffel and Esser Mannheim Beginner's Slide Rule 4059 8" Linear slide rule
2004.010.0018
Keuffel & Esser Co.
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