Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes,申请号GB19470031562-传众专利搜索

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发明名称	Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes
摘要
申请公布号	GB652101(A)	申请公布日期	1951.04.18
申请号	GB19470031562	申请日期	1947.11.28
申请人	PHILIPS ELECTRICAL LIMITED	发明人
分类号	H01J19/52	主分类号	H01J19/52
代理机构		代理人
主权项
地址

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