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Patent:US629381


Patent:US 629381
Title:Device for operating adding machines
Date:25.07.1899
Place:Malden, Massachusetts, USA
Country:USA
Person:Lovering, John H. (P)
Company:
Internal Links:
Keywords:Pedale
Link to the patent office:
(without guarantee)
 US629381 (espacenet),  US629381 (uspto)


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