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Patent:US2294111


Patent:US 2294111
Title:Calculating Machine
Date:25.08.1942
Place:
Country:USA
Person:Friden, Carl Mauritz Fredrick (P)
Company:Friden (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2294111 (espacenet),  US2294111 (uspto)


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