Improvements relating to electrode assemblies for electron discharge devices,申请号GB19480018975-传众专利搜索

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发明名称	Improvements relating to electrode assemblies for electron discharge devices
摘要
申请公布号	GB654599(A)	申请公布日期	1951.06.20
申请号	GB19480018975	申请日期	1948.07.15
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	PEARCE RALPH REGINALD
分类号	H01J29/48	主分类号	H01J29/48
代理机构		代理人
主权项
地址

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