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发明名称
METHOD AND APPARATUS FOR DETERMINING DRILL STRING MOVEMENT MODE
摘要
申请公布号
CA2620905(A1)
申请公布日期
2003.10.30
申请号
CA20032620905
申请日期
2003.04.03
申请人
HUTCHINSON, MARK W.
发明人
HUTCHINSON, MARK W.
分类号
E21B44/00;E21B12/00
主分类号
E21B44/00
代理机构
代理人
主权项
地址
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