Improvements in or relating to travelling wave amplifiers,申请号GB19490031668-传众专利搜索

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发明名称	Improvements in or relating to travelling wave amplifiers
摘要
申请公布号	GB701034(A)	申请公布日期	1953.12.16
申请号	GB19490031668	申请日期	1949.12.09
申请人	WESTERN ELECTRIC COMPANY	发明人
分类号	H01J23/11;H01J25/38	主分类号	H01J23/11
代理机构		代理人
主权项
地址

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