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发明名称
Menetelmä kallionporauksen ohjaamiseksi
摘要
申请公布号
FI972447(A)
申请公布日期
1999.01.08
申请号
FI19970002447
申请日期
1997.06.09
申请人
TAMROCK OY
发明人
KOIVUNEN, PERTTI;SANERMA, SIMO;EILO, ERKKI
分类号
E21B7/02;E21B15/00;E21B19/08;E21B44/00;E21B44/02;E21C37/16;E21D9/00;(IPC1-7):E21B44/00
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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