High-frequency electron discharge device,申请号US19470789273-传众专利搜索

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发明名称	High-frequency electron discharge device
摘要
申请公布号	US2679019(A)	申请公布日期	1954.05.18
申请号	US19470789273	申请日期	1947.12.02
申请人	RADIO CORPORATION	发明人	LINDENBLAD NILS E.
分类号	H01J23/24	主分类号	H01J23/24
代理机构		代理人
主权项
地址

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