Improvements in and relating to travelling-wave electron discharge devices,申请号GB19550013803-传众专利搜索

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发明名称	Improvements in and relating to travelling-wave electron discharge devices
摘要
申请公布号	GB804437(A)	申请公布日期	1958.11.12
申请号	GB19550013803	申请日期	1955.05.12
申请人	VARIAN ASSOCIATES	发明人
分类号	H01J23/083;H01J25/40	主分类号	H01J23/083
代理机构		代理人
主权项
地址

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