Improvements in electron discharge apparatus of the velocity modulation type,申请号GB19440000778-传众专利搜索

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发明名称	Improvements in electron discharge apparatus of the velocity modulation type
摘要
申请公布号	GB585752(A)	申请公布日期	1947.02.24
申请号	GB19440000778	申请日期	1944.01.14
申请人	STANDARD TELEPHONES AND CABLES LIMITED;JOHN HEAVER FREMLIN;CHRISTOPHER HENRY FOULKES	发明人
分类号	H01J25/16;H04B1/26	主分类号	H01J25/16
代理机构		代理人
主权项
地址

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