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Patent:US2302422


Patent:US 2302422
Title:Calculating machine
Date:17.11.1942
Place:Chicago und Detroit
Country:USA
Person:Carl W. Grouse
Company:Burroughs (P) Adding Machine Comp.
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2302422 (espacenet),  US2302422 (uspto)


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