DRILL ROD COUPLING,申请号EP19990936336-传众专利搜索

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发明名称	DRILL ROD COUPLING
摘要
申请公布号	EP1088150(A1)	申请公布日期	2001.04.04
申请号	EP19990936336	申请日期	1999.05.21
申请人	MANNESMANN AKTIENGESELLSCHAFT	发明人	KRUG, GERHARD;QUADFLIEG, ERICH
分类号	E21B17/042;F16L15/00;F16L15/04;(IPC1-7):E21B17/042	主分类号	E21B17/042
代理机构		代理人
主权项
地址

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