Relé telefónco perfeccionado,申请号ES19100000299U-传众专利搜索

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发明名称	Relé telefónco perfeccionado
摘要
申请公布号	ES29910(Y)	申请公布日期	1952.11.16
申请号	ES19100000299U	申请日期	1952.02.04
申请人	ETABLISSEMENT LANGLADE & PICARD	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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