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发明名称
Kraftkilde til borerör
摘要
申请公布号
DK1577487(T3)
申请公布日期
2008.03.03
申请号
DK20050251488T
申请日期
2005.03.11
申请人
NATIONAL-OILWELL, L.P.
发明人
BELIK, JAROSLAV V.
分类号
E21B19/10
主分类号
E21B19/10
代理机构
代理人
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地址
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