| 发明名称 |
Method for open pit bench mining |
| 摘要 |
A bench mining method, particularly useful for open pit bench mining, which employs a combination of bulldozers and transversely movable apron feeders to provide the primary mechanism for removal of overburden.
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| 申请公布号 |
US8366201(B2) |
申请公布日期 |
2013.02.05 |
| 申请号 |
US20100728833 |
申请日期 |
2010.03.22 |
| 申请人 |
DRUMMOND COMPANY, INC.;DRUMMOND GARRY N.;HONEYCUTT EUGENE;ANDERSON HAROLD GENE |
发明人 |
DRUMMOND GARRY N.;HONEYCUTT EUGENE;ANDERSON HAROLD GENE |
| 分类号 |
E21C41/26 |
主分类号 |
E21C41/26 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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