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Patent:US2294948


Patent:US 2294948
Title:Calculating Machine
Date:08.09.1942
Place:
Country:USA
Person:Avery, Harold (P)
Company:Marchant (P) Calculating Machine Co., CA
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2294948 (espacenet),  US2294948 (uspto)


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Aus der Patentschrift US2294948