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经营范围
发明名称
Hydraulic overshot tool without a nozzle,and method of retrieving a cylinder
摘要
申请公布号
GB0413616(D0)
申请公布日期
2004.07.21
申请号
GB20040013616
申请日期
2004.06.17
申请人
WEATHERFORD/LAMB INC.
发明人
分类号
E21B23/04;E21B31/18
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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