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发明名称
Verfahren und Vorrichtung zur Verrohrung eines Bohrloches
摘要
申请公布号
DE60038638(D1)
申请公布日期
2008.05.29
申请号
DE20006038638
申请日期
2000.09.06
申请人
E2TECH LTD.
发明人
OOSTERLING, PETER
分类号
E21B43/10;E21B43/16;E21B23/01
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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