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经营范围
发明名称
Wellbore casing
摘要
申请公布号
GB0229377(D0)
申请公布日期
2003.01.22
申请号
GB20020029377
申请日期
1999.11.08
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
分类号
E21B29/10;E21B43/08;E21B43/10;E21B43/14;E21B43/30
主分类号
E21B29/10
代理机构
代理人
主权项
地址
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