Improvements in electron-emitting electrodes for electric discharge tubes,申请号GB19460012657-传众专利搜索

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发明名称	Improvements in electron-emitting electrodes for electric discharge tubes
摘要
申请公布号	GB648955(A)	申请公布日期	1951.01.17
申请号	GB19460012657	申请日期	1946.04.26
申请人	PHILIPS LAMPS LIMITED	发明人
分类号	H01J1/14;H01J61/067	主分类号	H01J1/14
代理机构		代理人
主权项
地址

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