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发明名称
Pressure compensation system for a steerable rotary drilling device
摘要
申请公布号
AU2003200412(B9)
申请公布日期
2006.04.06
申请号
AU20030200412
申请日期
2003.02.05
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
ELIS VANDENBERG;EDWARD JAMES CARGILL
分类号
E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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