Ensemble combiné comprenant un outil d'orientation et un dispositif de poussée appliquant une charge à un trépan utilisé dans un puits de forage.,申请号FR19940010005-传众专利搜索

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发明名称	Ensemble combiné comprenant un outil d'orientation et un dispositif de poussée appliquant une charge à un trépan utilisé dans un puits de forage.
摘要
申请公布号	FR2709148(B1)	申请公布日期	1999.05.14
申请号	FR19940010005	申请日期	1994.08.12
申请人	CAMCO INTERNATIONAL INC	发明人	PRINGLE RONALD EARL
分类号	E21B4/18;E21B7/06;E21B7/08;E21B17/00;E21B17/10;(IPC1-7):E21B7/08;E21B17/02;E21B17/20	主分类号	E21B4/18
代理机构		代理人
主权项
地址

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