Rotary drill bit for casing milling and formation drilling,申请号EP19980309402-传众专利搜索

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发明名称	Rotary drill bit for casing milling and formation drilling
摘要
申请公布号	EP0916803(A3)	申请公布日期	2000.08.02
申请号	EP19980309402	申请日期	1998.11.17
申请人	CAMCO INTERNATIONAL INC.	发明人	CARAWAY, DOUGLAS
分类号	E21B10/54;E21B10/56;E21B29/06;(IPC1-7):E21B10/46	主分类号	E21B10/54
代理机构		代理人
主权项
地址

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