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Patent:US1248281


Patent:US 1248281
Title:Computing-machine
Date:27.11.1917
Place:Lakewood, OH und New York
Country:USA
Person:Dennis, A.S. (P)
Company:Underwood (P) Computing Machine Comp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1248281 (espacenet),  US1248281 (uspto)


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