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Patent:US1798610


Patent:US 1798610
Title:Back space and column normalizing mechanism for card perforating machines
Date:31.03.1931
Place:Brooklyn und New York, NY
Country:USA
Person:Lasker, William Walter (P)
Company:Remington (P) Rand Inc
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Keywords:
Link to the patent office:
(without guarantee)
 US1798610 (espacenet),  US1798610 (uspto)


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