Improvements in or relating to electrical signalling systems,申请号GB19610009523-传众专利搜索

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发明名称	Improvements in or relating to electrical signalling systems
摘要
申请公布号	GB978937(A)	申请公布日期	1965.01.01
申请号	GB19610009523	申请日期	1961.03.15
申请人	BRITISH TELECOMMUNICATIONS RESEARCH LIMITED	发明人	MOFFETT ROBIN HENRY;LUNN GERALD JOHN
分类号	H04J3/10	主分类号	H04J3/10
代理机构		代理人
主权项
地址

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