Improvements in and relating to thermionic valve amplifiers,申请号GB19380015651-传众专利搜索

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发明名称	Improvements in and relating to thermionic valve amplifiers
摘要
申请公布号	GB515158(A)	申请公布日期	1939.11.28
申请号	GB19380015651	申请日期	1938.05.25
申请人	ARTHUR REGINALD ALBERT RENDALL	发明人
分类号	H03F3/52	主分类号	H03F3/52
代理机构		代理人
主权项
地址

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