BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS,申请号WO2010US41084-传众专利搜索

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发明名称	BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS
摘要	<p>An apparatus for reaming or enlarging a borehole comprising a bi-center drill bit having backup cutters thereon.</p>
申请公布号	WO2011005774(A3)	申请公布日期	2011.05.05
申请号	WO2010US41084	申请日期	2010.07.06
申请人	BAKER HUGHES INCORPORATED;WOOD, MATTHEW, S.;SINKINSON, JAMES, O.	发明人	WOOD, MATTHEW, S.;SINKINSON, JAMES, O.
分类号	E21B10/30;E21B10/573	主分类号	E21B10/30
代理机构		代理人
主权项
地址

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