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发明名称
Locking apparatus with packoff capability
摘要
申请公布号
GB2409481(A)
申请公布日期
2005.06.29
申请号
GB20050005630
申请日期
2003.09.02
申请人
* BAKER HUGHES INCORPORATED
发明人
CLIFFORD H. * BEALL
分类号
E21B23/02;(IPC1-7):E21B23/02
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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