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Patent:US1905305


Patent:US 1905305
Title:Combined typewriting and computing machine
Date:25.04.1933
Place:Bayonne, NJ und New York
Country:USA
Person:Henry Resch
Company:Underwood Elliott-Fisher (P) Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1905305 (espacenet),  US1905305 (uspto)


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