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经营范围
发明名称
Concentric casing jack.
摘要
申请公布号
EG23319(A)
申请公布日期
2004.12.29
申请号
EG20020101078
申请日期
2002.10.01
申请人
HUGHES UBHD TOOL COMPANY, LLC
发明人
HUGHES, W., JAMES
分类号
E21B19/00;E21B19/10;E21B33/04;E21B33/06;(IPC1-7):E21B33/04
主分类号
E21B19/00
代理机构
代理人
主权项
地址
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