Electron discharge device and circuit,申请号US19410396021-传众专利搜索

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法人/股东/高管

发明名称	Electron discharge device and circuit
摘要
申请公布号	US2342896(A)	申请公布日期	1944.02.29
申请号	US19410396021	申请日期	1941.05.31
申请人	RADIO CORPORATION OF AMERICA	发明人	SALZBERG BERNARD
分类号	H03B5/18	主分类号	H03B5/18
代理机构		代理人
主权项
地址

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