Improvements in or connected with amplifying circuits employing thermionic valves,申请号GB19320026058-传众专利搜索

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发明名称	Improvements in or connected with amplifying circuits employing thermionic valves
摘要
申请公布号	GB407398(A)	申请公布日期	1934.03.19
申请号	GB19320026058	申请日期	1932.09.19
申请人	CYRIL FRANK ELWELL;FREDERICK E. TERMAN	发明人
分类号	H01J19/30	主分类号	H01J19/30
代理机构		代理人
主权项
地址

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