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经营范围
发明名称
Expandable connector
摘要
申请公布号
GB0318550(D0)
申请公布日期
2003.09.10
申请号
GB20030018550
申请日期
2000.04.27
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
分类号
E21B17/042;E21B17/08;E21B23/04;E21B33/04;E21B33/14;E21B43/10
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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