Improvements in or relating to thermionic cathodes producing a directed electron beam,申请号GB19360010389-传众专利搜索

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发明名称	Improvements in or relating to thermionic cathodes producing a directed electron beam
摘要
申请公布号	GB473149(A)	申请公布日期	1937.10.07
申请号	GB19360010389	申请日期	1936.04.08
申请人	VLADISLAS ZEITLINE;APOLLINAIRE ZEITLINE;VLADIMIR KLIATCHKO	发明人
分类号	H01J29/48	主分类号	H01J29/48
代理机构		代理人
主权项
地址

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