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发明名称
Skilleanordning
摘要
申请公布号
NO20054272(A)
申请公布日期
2007.03.16
申请号
NO20050004272
申请日期
2005.09.15
申请人
PETROLEUM TECHNOLOGY COMPANY AS
发明人
STOKKA OYVIND;KROHN HELGE
分类号
E21B21/12;E21B;E21B17/01;E21B21/00;E21B37/10
主分类号
E21B21/12
代理机构
代理人
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地址
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