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发明名称
Boreverktöy med stötdempere
摘要
申请公布号
NO314670(B1)
申请公布日期
2003.04.28
申请号
NO19970006069
申请日期
1997.12.23
申请人
SECURITY DIAMANT BOART STRATABIT
发明人
BESSON, ALAIN;DELWICHE, ROBERT;LECOUR, PIERRE
分类号
E21B10/16;E21B10/00;E21B10/42;(IPC1-7):E21B10/00
主分类号
E21B10/16
代理机构
代理人
主权项
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