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经营范围
发明名称
High pressure water assisted mining and tunnelling machine
摘要
申请公布号
GB2216158(A)
申请公布日期
1989.10.04
申请号
GB19890003547
申请日期
1989.02.16
申请人
* SASOL MINING
发明人
JULIAN ANDRZEJ * KORNECKI;CHARLES JOHN * ARMSTRONG
分类号
E21C25/60;E21C35/23
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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