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发明名称
EXPANDABLE RETRIEVABLE BRIDGE PLUG
摘要
申请公布号
EP0848784(B1)
申请公布日期
2003.05.02
申请号
EP19960930448
申请日期
1996.08.15
申请人
BROENNTEKNOLOGIUTVIKLING AS
发明人
HIORTH, ESPEN;ANDERSEN, FRODE;PEDERSEN, DAG, RAVN
分类号
E21B33/12;E21B33/129;(IPC1-7):E21B33/128
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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