Système de téléphonie par courants porteurs,申请号FRD1054908-传众专利搜索

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发明名称	Système de téléphonie par courants porteurs
摘要
申请公布号	FR1054908(A)	申请公布日期	1954.02.15
申请号	FRD1054908	申请日期	1952.02.21
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H04J1/04	主分类号	H04J1/04
代理机构		代理人
主权项
地址

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