Improvements in or relating to signalling apparatus for subscriber's stations in a telephone installation,申请号GB19590001382-传众专利搜索

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发明名称	Improvements in or relating to signalling apparatus for subscriber's stations in a telephone installation
摘要
申请公布号	GB907466(A)	申请公布日期	1962.10.03
申请号	GB19590001382	申请日期	1959.01.14
申请人	TELEFONAKTIEBOLAGET L M ERICSSON	发明人
分类号	H04M19/04	主分类号	H04M19/04
代理机构		代理人
主权项
地址

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