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Patent:US3250465


Patent:US 3250465
Title:Calculator protection system
Date:10.05.1966
Place:
Country:USA
Person:Look Richard K
Company:Victor (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US3250465 (espacenet),  US3250465 (uspto)


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Aus der Patentschrift US3250465