Calculating directional drilling tool face offsets,申请号GB20020022924-传众专利搜索

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发明名称	Calculating directional drilling tool face offsets
摘要
申请公布号	GB0222924(D0)	申请公布日期	2002.11.13
申请号	GB20020022924	申请日期	2002.10.03
申请人	PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC	发明人
分类号	E21B7/06	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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