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Patent:US1465871


Patent:US 1465871
Title:Calculating Machine
Date:21.08.1923
Place:
Country:USA
Person:Schaller, Carl (P)
Company:Grimme, Natalis u. Co. (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1465871 (espacenet),  US1465871 (uspto)


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Aus der Patentschrift US1465871