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Patent:US2311866


Patent:US 2311866
Title:Combined typewriting and computing machine
Date:23.02.1943
Place:Hartford, CT und New York
Country:USA
Person:Pitman, Henry L. (P)
Company:Underwood Elliott-Fisher (P) Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US2311866 (espacenet),  US2311866 (uspto)


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