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摘要
申请公布号
NO20031936(D0)
申请公布日期
2003.04.29
申请号
NO20030001936
申请日期
2003.04.29
申请人
HALLIBURTON ENERGY SERVICES INC
发明人
SMITH, RAY C
分类号
E21B23/01;E21B43/10;(IPC1-7):E21B
主分类号
E21B23/01
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代理人
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