Dispositif de signalisation d'une installation de télécommunication.,申请号CHD285635-传众专利搜索

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发明名称	Dispositif de signalisation d'une installation de télécommunication.
摘要
申请公布号	CH285635(A)	申请公布日期	1952.09.15
申请号	CHD285635	申请日期	1947.11.06
申请人	STANDARD TELEPHONE ET RADIO S.A.	发明人	S.A. STANDARD TELEPHONE ET RADIO
分类号	H04Q3/52;H04Q11/04	主分类号	H04Q3/52
代理机构		代理人
主权项
地址

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