Dispositif permettant de téléphoner à volonté avec les mains libres,申请号FR19590606570-传众专利搜索

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发明名称	Dispositif permettant de téléphoner à volonté avec les mains libres
摘要
申请公布号	FR1249864(A)	申请公布日期	1961.01.06
申请号	FR19590606570	申请日期	1959.11.04
申请人		发明人	CIAIS ROGER-LEON-LOUIS
分类号	H04M1/62	主分类号	H04M1/62
代理机构		代理人
主权项
地址

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