Periodic electrostatically focused beam tubes,申请号GB19590039543-传众专利搜索

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发明名称	Periodic electrostatically focused beam tubes
摘要
申请公布号	GB925551(A)	申请公布日期	1963.05.08
申请号	GB19590039543	申请日期	1959.11.20
申请人	RADIO CORPORATION OF AMERICA	发明人
分类号	H01J23/083	主分类号	H01J23/083
代理机构		代理人
主权项
地址

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