Electron discharge device utilizing electron multiplication,申请号US19390249279-传众专利搜索

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发明名称	Electron discharge device utilizing electron multiplication
摘要
申请公布号	US2203225(A)	申请公布日期	1940.06.04
申请号	US19390249279	申请日期	1939.01.04
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人	KLEMPERER OTTO
分类号	H01J29/02;H01J43/20	主分类号	H01J29/02
代理机构		代理人
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