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Patent:US1580534


Patent:US 1580534
Title:Tabulating Mechanism for Adding Machines
Date:13.04.1926
Place:Detroit (Michigan) USA
Country:USA
Person:Rinsche, Frank Charles (P)
Company:Burroughs (P) Adding Machine Company
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 US1580534 (espacenet),  US1580534 (uspto)


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Aus der Patentschrift US1580534