Electron discharge device,申请号US19360104754-传众专利搜索

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发明名称	Electron discharge device
摘要
申请公布号	US2138928(A)	申请公布日期	1938.12.06
申请号	US19360104754	申请日期	1936.10.09
申请人	ELECTRIC AND MUSICAL INDUSTRIES, LTD.	发明人	KLEMPERER OTTO
分类号	H01J43/08	主分类号	H01J43/08
代理机构		代理人
主权项
地址

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