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Patent:US1314105


Patent:US 1314105
Title:Calculating machine
Date:26.08.1919
Place:Chicago und Wilmington, DE
Country:USA
Person:Wahl, John C. (P)
Company:Wahl (P) Adding Machine Co.
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Keywords:
Link to the patent office:
(without guarantee)
 US1314105 (espacenet),  US1314105 (uspto)


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