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发明名称
Porausmenetelmä ja laitteisto menetelmän suorittamiseksi
摘要
申请公布号
FI100419(B)
申请公布日期
1997.11.28
申请号
FI19930003117
申请日期
1993.07.07
申请人
RENFER,HEINZ
发明人
MATHIS,ANDREA LINARD
分类号
E21B4/14;E21B6/00;E21B6/02;(IPC1-7):E21B6/00
主分类号
E21B4/14
代理机构
代理人
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