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经营范围
发明名称
Improved expansion assembly for a tubular expander tool,and method of tubular expansion
摘要
申请公布号
GB0328868(D0)
申请公布日期
2004.01.14
申请号
GB20030028868
申请日期
2003.12.12
申请人
WEATHERFORD/LAMB INC.
发明人
分类号
E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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