Improvements in and relating to gas discharge devices,申请号GB19330018721-传众专利搜索

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发明名称	Improvements in and relating to gas discharge devices
摘要
申请公布号	GB415554(A)	申请公布日期	1934.08.30
申请号	GB19330018721	申请日期	1933.07.01
申请人	EGBERT VON LEPEL	发明人
分类号	H01J65/00;H01J65/04	主分类号	H01J65/00
代理机构		代理人
主权项
地址

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