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发明名称
Borehulsværktøj
摘要
申请公布号
DK0811111(T3)
申请公布日期
1999.11.15
申请号
DK19960903001T
申请日期
1996.02.22
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
CHEVALLIER, SEBASTIEN, ARNAUD;FAURE, ALBAN, MICHEL;OOSTERLING, PETER
分类号
E21B19/08;E21B17/10;E21B44/00;E21B44/02;(IPC1-7):E21B44/00
主分类号
E21B19/08
代理机构
代理人
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