Dispositif de focalisation magnétique pour tubes à ondes progressives,申请号FR19590789210-传众专利搜索

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发明名称	Dispositif de focalisation magnétique pour tubes à ondes progressives
摘要
申请公布号	FR1222013(A)	申请公布日期	1960.06.07
申请号	FR19590789210	申请日期	1959.03.12
申请人	ENGLISH ELECTRIC VALVE COMPANY LIMITED	发明人
分类号	H01J23/087	主分类号	H01J23/087
代理机构		代理人
主权项
地址

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