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Patent:US2597123


Patent:US 2597123
Title:Totalizer and calculator
Date:20.05.1952
Place:
Country:USA
Person:Smith Jr John Preston, Naef Alfred
Company:Daven Company
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2597123 (espacenet),  US2597123 (uspto)


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Aus der Patentschrift US2597123