Patent
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Patent:US334064
12.01.1886 E. A. Watson : Calculating Machine
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Patent:US334419
19.01.1886 Duschanek, Karl (P) : Calculating Machine
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Patent:US335374
02.02.1886 T. W. Maxey : Adding Machine
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Patent:US336812
23.02.1886 E. Kimmel & E.E. Claussen : Planimeter
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Patent:US337533
09.03.1886 S. S. Streck : Time Calculator
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Patent:US338075
16.03.1886 W. D. F. Jarvis : Calculating Device
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Patent:US343506
08.06.1886 L. W. Swem : Adding Machine
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Patent:US343770
15.06.1886 P.T. Lindholm : Adding Machine
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Patent:US343796
15.06.1886 Charpantier, Jules V. (P) : Calculator/Apparatus for facilitating the multiplication of numbers
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Patent:US344025
22.06.1886 Barnes, Brown M. (P) und Shapley, Charles E. (P) : Adding machine
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Patent:US344180
22.06.1886 Halsey, Edward (P) : Adding machine
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Patent:US344181
22.06.1886 Halsey, Edward (P) : Apparatus for multiplication and other arithmetical processes
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Patent:US344182
28.06.1886 Halsey, Edward (P) : Tax and percentage calculator
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Patent:US344624
29.06.1886 Charpantier, Jules V. (P) : Calculator/Apparatus for facilitating the multiplication of numbers
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Patent:US345445
13.07.1886 C. Pelletier : Ball Calculator
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Patent:US346925
10.08.1886 W. Koch : adding machine
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Patent:US346927
10.08.1886 Antoine Lapeyre : Adding machine
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Patent:US348369
31.08.1886 Weiss, Louis T. (P) Kruse Check and Adding Machine Comp. : Machine for delivering and adding checks
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Patent:US348437
31.08.1886 Weiss, Carl W. (P) Kruse Check and Adding Machine Comp. : Electro Magnetic Adding Machine
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Patent:US348496
31.08.1886 Koch, William (P) und Kruse, Charles (P) Kruse Check and Adding Machine Comp. : Check printing and adding machine
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Patent:US349459
21.09.1886 Shattuck, Arthur (P) and C. Thorn : Adding Machine
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Patent:US350577
12.10.1886 William B. Carpenter Celluloid Novelty Comp. : Game-counter
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Patent:US350986
19.10.1886 William C. McGill : Cash-register
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Patent:US351131
19.10.1886 J. W. Snider : Breeding Calendar
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Patent:US352218
09.11.1886 G. W. Bolton & C. H. Tillmeyer : Abacus
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Patent:US352408
09.11.1886 George H. Harris : Calculator
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Patent:US353318
30.11.1886 Lewis, Leonidas H. (P) und Guerrant, Peter M. (P) : Adding machine
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Patent:US354789
21.12.1886 Albert Eugene Hix : Adding-machine
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Patent:US370719
16.09.1886 Austin, Samuel E. : Adding-machine