Traveling wave tubes,申请号US19570662755-传众专利搜索

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发明名称	Traveling wave tubes
摘要
申请公布号	US2916655(A)	申请公布日期	1959.12.08
申请号	US19570662755	申请日期	1957.05.31
申请人	RAYTHEON COMPANY	发明人	HARPER ROBERT
分类号	H01J25/38	主分类号	H01J25/38
代理机构		代理人
主权项
地址

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