Système multiple de transmission de signaux,申请号FRD872731-传众专利搜索

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发明名称	Système multiple de transmission de signaux
摘要
申请公布号	FR872731(A)	申请公布日期	1942.06.17
申请号	FRD872731	申请日期	1941.05.28
申请人	HAZELTINE CORPORATION	发明人
分类号	H04J3/16	主分类号	H04J3/16
代理机构		代理人
主权项
地址

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