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发明名称
Method and device for drilling holes in soil or rock, particularly for the insertion of injection anchors.
摘要
申请公布号
EP0527460(B1)
申请公布日期
1995.05.17
申请号
EP19920113583
申请日期
1992.08.10
申请人
STUMP BOHR GMBH
发明人
TUDORA, GEORG, DIPL.-ING.;PORZIG, RALF, DIPL.-ING.;HUETTE, NIKOLAUS
分类号
E21B7/20;E21B6/00;E21B19/14;E21B19/20;(IPC1-7):E21B19/20
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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