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发明名称
INDRETNING TIL BORING AF HULLER I JORDBUNDEN
摘要
申请公布号
DK167582(B1)
申请公布日期
1993.11.22
申请号
DK19910000258
申请日期
1991.02.14
申请人
DIAMANT BOART CRAELIUS AB
发明人
ODEN, ANDERS;JONSSON, GUNNAR
分类号
E21B7/06;(IPC1-7):E21B7/18;E21B10/60
主分类号
E21B7/06
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代理人
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