Improvements in and relating to thermionic valves and circuits,申请号GB19360026773-传众专利搜索

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发明名称	Improvements in and relating to thermionic valves and circuits
摘要
申请公布号	GB482591(A)	申请公布日期	1938.04.01
申请号	GB19360026773	申请日期	1936.10.02
申请人	JOHN HENRY OWEN HARRIES;EDWARD GEORGE AUTIE	发明人
分类号	H03D1/16	主分类号	H03D1/16
代理机构		代理人
主权项
地址

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