Electron tube structure and the manufacture thereof,申请号US19450604676-传众专利搜索

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发明名称	Electron tube structure and the manufacture thereof
摘要
申请公布号	US2581997(A)	申请公布日期	1952.01.08
申请号	US19450604676	申请日期	1945.07.12
申请人	GENERAL ELECTRIC COMPANY	发明人	BEGGS JAMES E.
分类号	H01J21/36	主分类号	H01J21/36
代理机构		代理人
主权项
地址

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