Improvements in or relating to travelling wave tubes,申请号GB19570012034D-传众专利搜索

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发明名称	Improvements in or relating to travelling wave tubes
摘要
申请公布号	GB837564(A)	申请公布日期	1960.06.15
申请号	GB19570012034D	申请日期	1957.04.12
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人
分类号	H01J23/24	主分类号	H01J23/24
代理机构		代理人
主权项
地址

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