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Patent:US1085757


Patent:US 1085757
Title:Calculating-machine
Date:03.02.1914
Place:Chicago und Wilmington, DE
Country:USA
Person:Poole, Arthur (P)
Company:Wahl (P) Adding Machine Co.
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Keywords:
Link to the patent office:
(without guarantee)
 US1085757 (espacenet),  US1085757 (uspto)


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