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Patent:US842763


Patent:US 842763
Title:Cryptographic Machine
Date:29.01.1907
Place:
Country:USA
Person:Burg, Hubert (P)
Company:
Internal Links:Chiffriergerät
Keywords:
Link to the patent office:
(without guarantee)
 US842763 (espacenet),  US842763 (uspto)


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Aus der Patentschrift US842763