Systèmes de communication bilatérale à deux voies,申请号FRD1028516-传众专利搜索

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发明名称	Systèmes de communication bilatérale à deux voies
摘要
申请公布号	FR1028516(A)	申请公布日期	1953.05.26
申请号	FRD1028516	申请日期	1950.11.28
申请人	SOCIETE FRANCAISE RADIO-ELECTRIQUE	发明人
分类号	H04J3/00;H04J7/02	主分类号	H04J3/00
代理机构		代理人
主权项
地址

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