Electron discharge amplifier device employing hollow resonator,申请号US19460704225-传众专利搜索

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发明名称	Electron discharge amplifier device employing hollow resonator
摘要
申请公布号	US2591910(A)	申请公布日期	1952.04.08
申请号	US19460704225	申请日期	1946.10.18
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	BARFORD NORMAN CHARLES
分类号	H01J25/12	主分类号	H01J25/12
代理机构		代理人
主权项
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