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发明名称
Drilling riser adapter with emergency functionality
摘要
申请公布号
GB201222442(D0)
申请公布日期
2013.01.23
申请号
GB20120022442
申请日期
2012.12.13
申请人
VETCO GRAY INC.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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