Electron discharge device including a hollow resonator,申请号US19460713002-传众专利搜索

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发明名称	Electron discharge device including a hollow resonator
摘要
申请公布号	US2516643(A)	申请公布日期	1950.07.25
申请号	US19460713002	申请日期	1946.11.29
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	PEARCE ALBERT F.
分类号	H01J23/20;H01J25/02	主分类号	H01J23/20
代理机构		代理人
主权项
地址

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