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经营范围
发明名称
UNDERWATER DRILLING RIG
摘要
申请公布号
EP1507952(B1)
申请公布日期
2006.06.21
申请号
EP20030722797
申请日期
2003.04.29
申请人
COUPLER DEVELOPMENTS LIMITED
发明人
AYLING, LAURENCE JOHN
分类号
E21B15/02;E21B7/124
主分类号
E21B15/02
代理机构
代理人
主权项
地址
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