Improvements in or relating to gas and/or vapour filled electric discharge devices,申请号GB19370031622-传众专利搜索

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发明名称	Improvements in or relating to gas and/or vapour filled electric discharge devices
摘要
申请公布号	GB503250(A)	申请公布日期	1939.04.04
申请号	GB19370031622	申请日期	1937.11.17
申请人	WALTER LUDWIG WILHELM SCHALLREUTER	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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