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Patent:US2098972


Patent:US 2098972
Title:Combined typewriting and computing machine
Date:16.11.1937
Place:Hartford, CT
Country:USA
Person:Pitman, Henry (P)
Company:Underwood (P) Elliott Fisher Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US2098972 (espacenet),  US2098972 (uspto)


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