Method of operating thermionic tubes and cathode therefor,申请号US19440527208-传众专利搜索

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发明名称	Method of operating thermionic tubes and cathode therefor
摘要
申请公布号	US2392397(A)	申请公布日期	1946.01.08
申请号	US19440527208	申请日期	1944.03.20
申请人	FEDERAL TELEPHONE AND RADIO CORPORATION	发明人	LITTON CHARLES V.
分类号	H01J1/20	主分类号	H01J1/20
代理机构		代理人
主权项
地址

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