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发明名称
Rock bolt
摘要
A rock bolt (10) which has a rectangular blade (42), which can pierce and shred a flexible housing, extending from cross-shaped mixing formations (44) at one end of an elongate rod (12).
申请公布号
EP2913477(A2)
申请公布日期
2015.09.02
申请号
EP20150155614
申请日期
2015.02.18
申请人
MINE SUPPORT PRODUCTS (PTY) LTD
发明人
NISSEN, CHRISTIAN
分类号
E21D20/02;E21D21/00
主分类号
E21D20/02
代理机构
代理人
主权项
地址
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