Improvements in and relating to travelling-wave tubes,申请号GB19580041674-传众专利搜索

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发明名称	Improvements in and relating to travelling-wave tubes
摘要
申请公布号	GB844914(A)	申请公布日期	1960.08.17
申请号	GB19580041674	申请日期	1958.12.24
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人
分类号	H01J25/42	主分类号	H01J25/42
代理机构		代理人
主权项
地址

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