Electron discharge device,申请号US19340708622-传众专利搜索

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发明名称	Electron discharge device
摘要
申请公布号	US2033112(A)	申请公布日期	1936.03.10
申请号	US19340708622	申请日期	1934.01.27
申请人	RADIO CORPORATION OF AMERICA	发明人	CARLISLE RICHARD W.
分类号	H01J21/06	主分类号	H01J21/06
代理机构		代理人
主权项
地址

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