Method of making ultrahigh frequency electron discharge device,申请号US19500139616-传众专利搜索

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发明名称	Method of making ultrahigh frequency electron discharge device
摘要
申请公布号	US2621996(A)	申请公布日期	1952.12.16
申请号	US19500139616	申请日期	1950.01.20
申请人	RADIO CORPORATION OF AMERICA	发明人	POWER DONNELL W.
分类号	H01J19/46	主分类号	H01J19/46
代理机构		代理人
主权项
地址

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