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Patent:US982416


Patent:US 982416
Title:Key for Keyboard Calculating Machine
Date:24.01.1911
Place:
Country:USA
Person:Felt, Dorr E. (P)
Company:
Internal Links:Taste
Keywords:
Link to the patent office:
(without guarantee)
 US982416 (espacenet),  US982416 (uspto)


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Aus der Patentschrift US982416