Improvements in or relating to variable electrical filters,申请号GB19480005501-传众专利搜索

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发明名称	Improvements in or relating to variable electrical filters
摘要
申请公布号	GB655083(A)	申请公布日期	1951.07.11
申请号	GB19480005501	申请日期	1948.02.24
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人	GRISDALE GEORGE LAMBERT
分类号	H03H7/01;H04L27/06	主分类号	H03H7/01
代理机构		代理人
主权项
地址

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