Arc electrode of graphite with ball tip,申请号US19660537617-传众专利搜索

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发明名称	Arc electrode of graphite with ball tip
摘要
申请公布号	US3396303(A)	申请公布日期	1968.08.06
申请号	US19660537617	申请日期	1966.03.21
申请人	NASA USA	发明人	GORDON WILLIAM A.
分类号	G01N21/67	主分类号	G01N21/67
代理机构		代理人
主权项
地址

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