Improvements in or relating to incandescent cathodes for use in gas or vapour filled discharge tubes,申请号GB19410007201-传众专利搜索

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发明名称	Improvements in or relating to incandescent cathodes for use in gas or vapour filled discharge tubes
摘要
申请公布号	GB549992(A)	申请公布日期	1942.12.17
申请号	GB19410007201	申请日期	1941.06.06
申请人	N.V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H01J61/067	主分类号	H01J61/067
代理机构		代理人
主权项
地址

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