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Patent:US1349386


Patent:US 1349386
Title:Combined typewriting and computing machine
Date:10.08.1920
Place:Brooklyn und New York
Country:USA
Person:Pitman, Henry L. (P)
Company:Underwood (P) Computing Machine Comp.
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Link to the patent office:
(without guarantee)
 US1349386 (espacenet),  US1349386 (uspto)


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