ARRANGEMENT FOR POSITIONING ROCK DRILLING RIG ON DRILLING SITE
申请公布号:EP1896691(A4)
申请号:EP20060764519
申请日期:2006.06.27
申请公布日期:2012.04.11
发明人:EILO, ERKKI;SAELENIEMI, TOMMI;KOSKELAINEN, JUSSI
分类号:E21D9/00;E21B;E21B7/02
主分类号:E21D9/00
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