Improvements in or relating to electrical attenuation measuring instruments,申请号GB19570026603-传众专利搜索

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发明名称	Improvements in or relating to electrical attenuation measuring instruments
摘要
申请公布号	GB882171(A)	申请公布日期	1961.11.15
申请号	GB19570026603	申请日期	1957.08.23
申请人	AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED	发明人	CAMPBELL CHARLES FRANCIS
分类号	H04B3/48	主分类号	H04B3/48
代理机构		代理人
主权项
地址

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