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发明名称
Centreringsorgan
摘要
申请公布号
DK1248895(T3)
申请公布日期
2006.12.27
申请号
DK20010901249T
申请日期
2001.01.18
申请人
DOWNHOLE PRODUCTS PLC
发明人
BARRON, WILLIAM;CLARK, ALISTAIR BERTRAM;KIRK, IAN ALASTAIR
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
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地址
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