Secrecy communication system,申请号US19560600196-传众专利搜索

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发明名称	Secrecy communication system
摘要
申请公布号	US2890269(A)	申请公布日期	1959.06.09
申请号	US19560600196	申请日期	1956.07.26
申请人	ZENITH RADIO CORPORATION	发明人	DRUZ WALTER S.
分类号	H04K1/00	主分类号	H04K1/00
代理机构		代理人
主权项
地址

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