DOWNHOLE TOOL WITH MULTIPLE MATERIAL RETAINING RING,申请号EP20090784606-传众专利搜索

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发明名称	DOWNHOLE TOOL WITH MULTIPLE MATERIAL RETAINING RING
摘要
申请公布号	EP2313606(A1)	申请公布日期	2011.04.27
申请号	EP20090784606	申请日期	2009.06.15
申请人	HALLIBURTON ENERGY SERVICES, INC.	发明人	PORTER, JESSE, C.;BARLOW, JOEL
分类号	E21B33/128	主分类号	E21B33/128
代理机构		代理人
主权项
地址

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