Patent
Suchergebnisse für: American Arithmometer
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Patent:FR192522
21.08.1888 American Arithmometer (P) Comp. : Perfectionnements apportés aux calculateurs mécaniques
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Patent:GB189317126
01.04.1889 American Arithmometer (P) Co. : Improvements in Calculating Machines
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Patent:GB189721268
12.03.1898 American Arithmometer (P) Comp. : Improvements in Printing Attachments for Calculating Machines
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Patent:GB189809600
25.06.1898 American Arithmometer (P) Co. : Improvements in Locking the Keys of Calculating and like Machines
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Patent:US396070
15.01.1890 Burroughs, William (P) American Arithmometer (P) Comp. : Ribbon-winding device
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Patent:US420617
04.02.1890 Burroughs, William (P) American Arithmometer (P) Comp. : Printing-recorder
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Patent:US590772
28.09.1897 William Henry Pike Jr American Arithmometer (P) Co. : Device for duplicate printing
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Patent:US756168
29.02.1904 Jackson, Albert C. (P) American Arithmometer (P) : Calculating Machine