Improvements in or relating to Electric Circuit Arrangements for Identifying Marked Feeder Lines in Telecommunications Exchange Systems.,申请号GB19680017165-传众专利搜索

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发明名称	Improvements in or relating to Electric Circuit Arrangements for Identifying Marked Feeder Lines in Telecommunications Exchange Systems.
摘要
申请公布号	GB1164954(A)	申请公布日期	1969.09.24
申请号	GB19680017165	申请日期	1968.04.10
申请人	SIEMENS AKTIENGESELLSCHAFT	发明人
分类号	H04L12/52	主分类号	H04L12/52
代理机构		代理人
主权项
地址

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