Improvements in or relating to variable impedance electrical circuits,申请号GB19620018523-传众专利搜索

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发明名称	Improvements in or relating to variable impedance electrical circuits
摘要
申请公布号	GB1047522(A)	申请公布日期	1966.11.09
申请号	GB19620018523	申请日期	1962.05.14
申请人	HER MAJESTY'S POSTMASTER GENERAL	发明人	WILSON FREDERICK ARTHUR
分类号	H03G1/00;H04M1/58	主分类号	H03G1/00
代理机构		代理人
主权项
地址

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