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发明名称
Torque-provider
摘要
申请公布号
GB2471957(A)
申请公布日期
2011.01.19
申请号
GB20100014638
申请日期
2009.03.18
申请人
CAMERON INTERNATIONAL CORPORATION
发明人
DENNIS P NGUYEN;CHRISTY L PETTER
分类号
E21B33/04;E21B33/035;E21B33/068
主分类号
E21B33/04
代理机构
代理人
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