Electric-discharge device and cathode,申请号US19570660592-传众专利搜索

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发明名称	Electric-discharge device and cathode
摘要
申请公布号	US2937302(A)	申请公布日期	1960.05.17
申请号	US19570660592	申请日期	1957.05.21
申请人	EDGERTON, GERMESHAUSEN & GRIER, INC.	发明人	GOLDBERG SEYMOUR
分类号	H01J17/06	主分类号	H01J17/06
代理机构		代理人
主权项
地址

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