Apparatus for and method of electron discharge control,申请号US19400320449-传众专利搜索

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发明名称	Apparatus for and method of electron discharge control
摘要
申请公布号	US2274194(A)	申请公布日期	1942.02.24
申请号	US19400320449	申请日期	1940.02.23
申请人	FARNSWORTH TELEVISION AND RADIO CORPORATION	发明人	FARNSWORTH PHILO T.
分类号	H01J25/78	主分类号	H01J25/78
代理机构		代理人
主权项
地址

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