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经营范围
发明名称
Anker für Unterwasser-Bohrlochkopf
摘要
申请公布号
DE69324243(T2)
申请公布日期
1999.07.08
申请号
DE19936024243T
申请日期
1993.05.13
申请人
COOPER CAMERON CORP., HOUSTON, TEX., US
发明人
HART, BRIAN, WAKEFIELD, WEST YORKSHIRE WF2 8LP, GB
分类号
E21B33/035;E21B43/013;(IPC1-7):E21B43/013
主分类号
E21B33/035
代理机构
代理人
主权项
地址
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