Improvements in or relating to electron-discharge devices and circuits therefor,申请号GB19470008237-传众专利搜索

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发明名称	Improvements in or relating to electron-discharge devices and circuits therefor
摘要
申请公布号	GB654943(A)	申请公布日期	1951.07.04
申请号	GB19470008237	申请日期	1947.03.26
申请人	PHILIPS LAMPS LIMITED	发明人
分类号	H01J1/312;H01J19/82	主分类号	H01J1/312
代理机构		代理人
主权项
地址

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