Perfectionnements aux systèmes de signalisation électrique,申请号FRD915952-传众专利搜索

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发明名称	Perfectionnements aux systèmes de signalisation électrique
摘要
申请公布号	FR915952(A)	申请公布日期	1946.11.22
申请号	FRD915952	申请日期	1945.10.16
申请人	AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED	发明人
分类号	H02J13/00	主分类号	H02J13/00
代理机构		代理人
主权项
地址

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