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发明名称
Fremgangsmate og anordning for trykkstyrt sekvensregulering
摘要
申请公布号
NO317432(B1)
申请公布日期
2004.10.25
申请号
NO20020006182
申请日期
2002.12.23
申请人
BAKKE OIL TOOLS AS
发明人
AKSELBERG FRANK
分类号
E21B23/04;E21B34/10;(IPC1-7):E21B23/04
主分类号
E21B23/04
代理机构
代理人
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