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发明名称
MARINE RISER HAVING VARIABLE BUOYANCY
摘要
申请公布号
EP1105581(A1)
申请公布日期
2001.06.13
申请号
EP19990936007
申请日期
1999.07.30
申请人
MOBIL OIL CORPORATION
发明人
SHANKS, FORREST, EARL, II
分类号
E21B17/01;(IPC1-7):E02D23/00
主分类号
E21B17/01
代理机构
代理人
主权项
地址
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