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经营范围
发明名称
POWER TONG
摘要
申请公布号
EP0963503(B1)
申请公布日期
2001.07.11
申请号
EP19980902096
申请日期
1998.01.29
申请人
WEATHERFORD/LAMB INC.
发明人
MCDANIELS, GARY, D.;CUMMINGS, PATRICK, D.;HAYES, MICHAEL, W.;ALBRIGHT, STEPHEN, L.
分类号
E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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