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Patent:US1307682


Patent:US 1307682
Title:Set bar mechanism for perforating machines
Date:24.06.1919
Place:Brooklyn und New York, NY
Country:USA
Person:Lasker, William Walter (P)
Company:Powers Accounting Machine Comp.
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Link to the patent office:
(without guarantee)
 US1307682 (espacenet),  US1307682 (uspto)


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