| 发明名称 |
Drill hole measuring device and rock drilling unit |
| 摘要 |
A drill hole measuring device and a rock drilling unit equipped with the measuring device. The measuring device (1) comprises a protective element (3), inside which a sensor (6) can be transferred by means of a transfer device (4).
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| 申请公布号 |
US7654317(B2) |
申请公布日期 |
2010.02.02 |
| 申请号 |
US20040552699 |
申请日期 |
2004.04.08 |
| 申请人 |
SANDVIK MINING AND CONSTRUCTION OY |
发明人 |
UITTO VESA |
| 分类号 |
E21B7/02;E21B47/01;E21B47/022 |
主分类号 |
E21B7/02 |
| 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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