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Patent:US2296312


Patent:US 2296312
Title:Variable authenticator
Date:22.09.1942
Place:New York und Hohokus, NJ
Country:USA
Person:Edward J. Sheehy Edgar L. Totten
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2296312 (espacenet),  US2296312 (uspto)


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