Method and means for increasing electron emission,申请号US19600003467-传众专利搜索

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发明名称	Method and means for increasing electron emission
摘要
申请公布号	US2974251(A)	申请公布日期	1961.03.07
申请号	US19600003467	申请日期	1960.01.19
申请人	BUREAU ALFRED J	发明人	BUREAU ALFRED J.
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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