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经营范围
发明名称
IKKE-ROTERENDE PLUGG-SETT.
摘要
申请公布号
NO891981(D0)
申请公布日期
1989.05.18
申请号
NO19890001981
申请日期
1989.05.18
申请人
HALLIBURTON COMPANY
发明人
WATSON, BROCK W.;FREEMAN, T. AUSTIN
分类号
E21B29/00;E21B33/12;E21B33/16;(IPC1-7):E21B/
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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