Improvements in and relating to electric carrier telegraph systems,申请号GB19540017621-传众专利搜索

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发明名称	Improvements in and relating to electric carrier telegraph systems
摘要
申请公布号	GB814887(A)	申请公布日期	1959.06.17
申请号	GB19540017621	申请日期	1954.06.15
申请人	BRITISH TELECOMMUNICATIONS RESEARCH LIMITED	发明人	TERLECKI RENAT;CARTER ROBERT OWEN
分类号	H04L27/12	主分类号	H04L27/12
代理机构		代理人
主权项
地址

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