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公开(公告)号：GB2376702A8
公开(公告)日：2004-09-30
申请号：GB0218034
申请日：2001-02-09
Applicant: ABB AS ABB OFFSHORE SYSTEMS
Inventor： QVAM HELGE ANDREAS , AGUILLERA PATRICE , HESTETUN STEINAR
IPC: E21B33/037 , E21B36/00
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