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发明名称
HYDRAULISKT AKTIVERBAR LOESGOERBAR KOPPLING OCH FOERFARANDE FOER MONTERING AV ETT INNERROER VID EN OLJE- BORRNINGSBRUNN.
摘要
申请公布号
FI921574(A0)
申请公布日期
1992.04.09
申请号
FI19920001574
申请日期
1992.04.09
申请人
UNION OIL COMPANY OF CALIFORNIA
发明人
MIMS, MICHAEL GENE;MUELLER, MARK DAVID;EHLINGER, JEFFRY C.
分类号
E21B17/06;E21B23/04;E21B43/10;F16L37/086;F16L37/62;(IPC1-7):E21B/
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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