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发明名称
CASING HANGER SYSTEMS
摘要
申请公布号
EP0261909(A3)
申请公布日期
1989.03.22
申请号
EP19870308330
申请日期
1987.09.21
申请人
PLEXUS OCEAN SYSTEMS LIMITED
发明人
VAN BILDERBEEK, BERNARD HERMAN
分类号
E21B33/043;(IPC1-7):E21B33/043
主分类号
E21B33/043
代理机构
代理人
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地址
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