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发明名称
Riser with axially offset dog-type connectors
摘要
申请公布号
EP1947290(B1)
申请公布日期
2011.04.06
申请号
EP20080001013
申请日期
2008.01.21
申请人
VETCO GRAY, INC.
发明人
FRASER, THOMAS A.
分类号
E21B17/08
主分类号
E21B17/08
代理机构
代理人
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地址
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