Power-driven ciphering devices,申请号US19520328482-传众专利搜索

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发明名称	Power-driven ciphering devices
摘要
申请公布号	US2777556(A)	申请公布日期	1957.01.15
申请号	US19520328482	申请日期	1952.12.29
申请人	WILHELM HAGELIN BORIS CAESAR	发明人	HAGELIN BORIS CAESAR WILHELM
分类号	G09C1/12	主分类号	G09C1/12
代理机构		代理人
主权项
地址

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