Circuit arrangement for telecommunication installations,申请号GB19530007026-传众专利搜索

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发明名称	Circuit arrangement for telecommunication installations
摘要
申请公布号	GB728265(A)	申请公布日期	1955.04.13
申请号	GB19530007026	申请日期	1953.03.13
申请人	SIEMENS & HALSKE AKTIENGESELLSCHAFT	发明人
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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