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Patent:US2832544


Patent:US 2832544
Title:Calculating machine
Date:29.04.1958
Place:San Leandro, CA
Country:USA
Person:Chall, Harold (P)
Company:Friden (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2832544 (espacenet),  US2832544 (uspto)


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