Improvements in and relating to electrical discharge devices for production of luminous effects,申请号GB19340010524-传众专利搜索

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发明名称	Improvements in and relating to electrical discharge devices for production of luminous effects
摘要
申请公布号	GB433804(A)	申请公布日期	1935.08.21
申请号	GB19340010524	申请日期	1934.04.06
申请人	PAUL FREEDMAN	发明人
分类号	H01J17/40;H01J61/64	主分类号	H01J17/40
代理机构		代理人
主权项
地址

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