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Patent:US1305557


Patent:US 1305557
Title:Perforating machine
Date:13.06.1919
Place:Brooklyn und New York, NY
Country:USA
Person:Lasker, William Walter (P)
Company:Powers Accounting Machine Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1305557 (espacenet),  US1305557 (uspto)


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