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Patent:US1317467


Patent:US 1317467
Title:Automatic item-counter for calculating-machines
Date:30.09.1919
Place:Chicago und Wilmington, DE
Country:USA
Person:Wahl, John C. (P)
Company:Wahl (P) Comp.
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Link to the patent office:
(without guarantee)
 US1317467 (espacenet),  US1317467 (uspto)


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