Improvements relating to the construction of thermionic valves,申请号GB19580017042-传众专利搜索

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发明名称	Improvements relating to the construction of thermionic valves
摘要
申请公布号	GB872928(A)	申请公布日期	1961.07.12
申请号	GB19580017042	申请日期	1958.05.08
申请人	ASSOCIATED ELECTRICAL INDUSTRIES LIMITED	发明人	FARROW FREDERIC WILLIAM RODBARD
分类号	H01J19/50	主分类号	H01J19/50
代理机构		代理人
主权项
地址

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