Appareil amplificateur d'un poste téléphonique de table,申请号CHD340259-传众专利搜索

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发明名称	Appareil amplificateur d'un poste téléphonique de table
摘要
申请公布号	CH340259(A)	申请公布日期	1959.08.15
申请号	CHD340259	申请日期	1957.01.08
申请人	COLOMB,JEAN-MAURICE;MAULAZ,WILLIAM	发明人	COLOMB,JEAN-MAURICE;MAULAZ,WILLIAM
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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