Improvements in and relating to electric converter circuit arrangements,申请号GB19510004362-传众专利搜索

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发明名称	Improvements in and relating to electric converter circuit arrangements
摘要
申请公布号	GB718500(A)	申请公布日期	1954.11.17
申请号	GB19510004362	申请日期	1951.02.22
申请人	BRITISH TELECOMMUNICATIONS RESEARCH LIMITED	发明人	BEAUFOY RAYMOND
分类号	H04L25/22	主分类号	H04L25/22
代理机构		代理人
主权项
地址

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