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发明名称
Unitized wellhead system
摘要
申请公布号
GB2262953(B)
申请公布日期
1995.10.04
申请号
GB19920026390
申请日期
1992.12.18
申请人
* DRIL-QUIP, INC
发明人
BRUCE J * WATKINS
分类号
E21B17/10;E21B33/04;(IPC1-7):E21B33/04
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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