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发明名称
VERFAHREN UND VORRICHTUNG ZUM PERFORIEREN VON BOHRLOECHERN.
摘要
申请公布号
DE3872296(D1)
申请公布日期
1992.07.30
申请号
DE19883872296
申请日期
1988.04.19
申请人
HALLIBURTON CO., DUNCAN, OKLA., US
发明人
GEORGE, FLINT R., KATY TEXAS 77449, US;GEORGE, KEVIN R., COLUMBUS TEXAS 78934, US
分类号
E21B34/10;E21B43/116;E21B43/1185;(IPC1-7):E21B43/116;E21B43/118
主分类号
E21B34/10
代理机构
代理人
主权项
地址
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