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Patent:US1234218


Patent:US 1234218
Title:Adding machine
Date:24.07.1917
Place:Detroit
Country:USA
Person:Rinsche, Frank Charles (P)
Company:Burroughs (P) Adding Machine Comp.
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1234218 (espacenet),  US1234218 (uspto)


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