A telephone system with line concentrator stations,申请号GB19610041775-传众专利搜索

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发明名称	A telephone system with line concentrator stations
摘要
申请公布号	GB989739(A)	申请公布日期	1965.04.22
申请号	GB19610041775	申请日期	1961.11.22
申请人	TELEFUNKEN PATENTVERWERTUNGS-G.M.B.H.	发明人
分类号	H04Q3/52	主分类号	H04Q3/52
代理机构		代理人
主权项
地址

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