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经营范围
发明名称
Expander for expanding a tubular element
摘要
申请公布号
GB0400680(D0)
申请公布日期
2004.02.18
申请号
GB20040000680
申请日期
2002.07.19
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
分类号
E21B7/20;E21B43/10
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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