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发明名称
HYDRAULISK SYSTEM FOR ELEKTRISK KONTROLLERT BOREHULLSVERKTOEY
摘要
申请公布号
NO920658(D0)
申请公布日期
1992.02.19
申请号
NO19920000658
申请日期
1992.02.19
申请人
HALLIBURTON COMPANY
发明人
SKINNER, NEAL G.
分类号
E21B23/04;E21B34/10;E21B34/16;(IPC1-7):E21B/
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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