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Patent:US2400244


Patent:US 2400244
Title:Calculating Machine
Date:14.05.1946
Place:
Country:USA
Person:Mathi, W. E. (P)
Company:Marchant (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2400244 (espacenet),  US2400244 (uspto)


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