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Patent:US1104468


Patent:US 1104468
Title:Combined type writing and computing machine
Date:21.07.1914
Place:New York und Brooklyn
Country:USA
Person:Richard M. Becker
Company:John T. Underwood (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1104468 (espacenet),  US1104468 (uspto)


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