Improvements in or relating to electric discharge tubes,申请号GB19410012159-传众专利搜索

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发明名称	Improvements in or relating to electric discharge tubes
摘要
申请公布号	GB547645(A)	申请公布日期	1942.09.04
申请号	GB19410012159	申请日期	1941.09.19
申请人	N.V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H01J7/18	主分类号	H01J7/18
代理机构		代理人
主权项
地址

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