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公开(公告)号：NO20074261A
公开(公告)日：2009-02-23
申请号：NO20074261
申请日：2007-08-21
Applicant: NAT OILWELL NORWAY AS
Inventor： KYLLINGSTAD AGE
CPC classification number: G01M3/26 , F04B51/00 , F04B2201/0208 , F04B2201/0605 , F04B2201/0803
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