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经营范围
发明名称
OPEN CUT MINING
摘要
申请公布号
AU545177(B2)
申请公布日期
1985.07.04
申请号
AU19820091354
申请日期
1981.12.18
申请人
SELLERS, G. + J. PTY. LTD.
发明人
GORDON SELLERS
分类号
E21C41/18;E21C41/26;E21C41/28
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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