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发明名称
Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt
摘要
申请公布号
AU2004289935(A1)
申请公布日期
2005.05.26
申请号
AU20040289935
申请日期
2004.10.20
申请人
ATLAS COPCO ROCK DRILLS AB
发明人
FREDRIK OBERG;MORGAN KANFLOD
分类号
E21D21/00;E21D20/00
主分类号
E21D21/00
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