Method of activating thermionic emitter,申请号US19560582159-传众专利搜索

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发明名称	Method of activating thermionic emitter
摘要
申请公布号	US2913629(A)	申请公布日期	1959.11.17
申请号	US19560582159	申请日期	1956.05.02
申请人	GENERAL ELECTRIC COMPANY	发明人	WHITE JOHN E.
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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