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发明名称
Thrust bearing assembly for a wireline-operated directional core barrel drill
摘要
申请公布号
AU2011101137(A4)
申请公布日期
2011.10.06
申请号
AU20110101137
申请日期
2011.09.06
申请人
DEVICO AS (NORWAY)
发明人
BORG, EIRIK;ERIKSEN, LARS
分类号
E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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