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Patent:US2372681


Patent:US 2372681
Title:Combined typewriting and computing machine
Date:03.04.1945
Place:Hartford, CT und New York
Country:USA
Person:H.L. Pitman
Company:Underwood Elliott-Fisher (P) Comp.
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2372681 (espacenet),  US2372681 (uspto)


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