Patent
Suchergebnisse für: Kettenaddierer
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Patent:AT33197B
06.10.1908 Gancher, Abraham (P), Zabriskie, Albert (P) : Addiermaschine
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Patent:CA195907
06.01.1920 Wrenn, Herbert (P) A. Wrenn Adding Machine Co. (P) : Calculator
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Patent:DE249606
28.09.1910 Actiengesellschaft vorm. Seidel und Naumann (P) : Addiermaschine mit Kettenantrieb
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Patent:DK18244C
01.02.1913 Jensen, Carl (P) : Additionsmaskine
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Patent:GB191214901
26.06.1913 Cheape, John Albert (P) : Improvements in and relating to Calculating Machines
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Patent:US1438419
12.12.1922 Wrenn, Herbert (P) A. Wrenn Adding Machine Co. (P) : Calculating machine
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Patent:US1481172
15.01.1924 Wrenn, Herbert (P) A. Wrenn Adding Machine Co. (P) : Calculating Machine
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Patent:US349459
21.09.1886 Shattuck, Arthur (P) and C. Thorn : Adding Machine
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Patent:US753586
01.03.1904 N. H. Kodama, (Gancher, Abraham (P)) : Automatic Adding and Subtracting Apparatus
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Patent:US816342
27.03.1906 N. H. Kodama und Gancher, Abraham (P) Isaac : Adding machine