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发明名称
Suspending casing from wellheads
摘要
申请公布号
GB2196670(A)
申请公布日期
1988.05.05
申请号
GB19870024307
申请日期
1987.10.16
申请人
* VETCO GRAY INC
发明人
PHILIPPE * NOBILEAU
分类号
E21B33/04;(IPC1-7):E21B33/04
主分类号
E21B33/04
代理机构
代理人
主权项
地址
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