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经营范围
发明名称
UNDERGROUND MINING METHOD
摘要
申请公布号
CA2409848(A1)
申请公布日期
2001.11.22
申请号
CA20012409848
申请日期
2001.05.17
申请人
ESKOM
发明人
FOURIE, DIRK BERNHARD;VAN EEDEN, CHRISTIAAN HIERONYMANS BORNMAN;JORDAAN, JACOBUS HOSEA
分类号
E21C41/16;E21C41/22;(IPC1-7):E21C41/16;E21F1/00
主分类号
E21C41/16
代理机构
代理人
主权项
地址
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