Cutting structure for rotary drill bit with conduits for drilling fluid,申请号EP19980306441-传众专利搜索

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发明名称	Cutting structure for rotary drill bit with conduits for drilling fluid
摘要
申请公布号	EP0898045(A3)	申请公布日期	2001.01.31
申请号	EP19980306441	申请日期	1998.08.12
申请人	CAMCO INTERNATIONAL (UK) LIMITED	发明人	TAYLOR, STEVEN;TAYLOR, MALCOLM ROY
分类号	E21B10/42;E21B10/43;E21B10/54;E21B10/55;E21B10/56;E21B10/567;E21B10/60;(IPC1-7):E21B10/60	主分类号	E21B10/42
代理机构		代理人
主权项
地址

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