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经营范围
发明名称
Roof bolting drilling rig.
摘要
申请公布号
ZA200005544(B)
申请公布日期
2001.04.23
申请号
ZA20000005544
申请日期
2000.10.10
申请人
STEINMULLER MINING AND PIPING SYSTEMS (PROPRIETARY) LIMITED
发明人
PETER DUNCAN FRASER
分类号
E21C
主分类号
E21C
代理机构
代理人
主权项
地址
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