Improvements in or relating to protective circuits for electric signal transmission lines,申请号GB19330015183-传众专利搜索

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发明名称	Improvements in or relating to protective circuits for electric signal transmission lines
摘要
申请公布号	GB420094(A)	申请公布日期	1934.11.26
申请号	GB19330015183	申请日期	1933.05.25
申请人	ELECTRICAL RESEARCH PRODUCTS INC.	发明人
分类号	H04B3/46	主分类号	H04B3/46
代理机构		代理人
主权项
地址

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