Electron emissive composition and method of application,申请号US19510205727-传众专利搜索

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发明名称	Electron emissive composition and method of application
摘要
申请公布号	US2683837(A)	申请公布日期	1954.07.13
申请号	US19510205727	申请日期	1951.01.12
申请人	GENERAL ELECTRIC COMPANY	发明人	HAGER JAMES A.
分类号	H01J9/04	主分类号	H01J9/04
代理机构		代理人
主权项
地址

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