Electron discharge device,申请号US19410379103-传众专利搜索

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发明名称	Electron discharge device
摘要
申请公布号	US2308800(A)	申请公布日期	1943.01.19
申请号	US19410379103	申请日期	1941.02.15
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	ANDERSON ALVA EUGENE
分类号	H01J3/02	主分类号	H01J3/02
代理机构		代理人
主权项
地址

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