| 发明名称 |
DEVICE FOR SEALING AN OPENING |
| 摘要 |
A device (11) for sealing an opening in a mine, the device including at least two vertically aligned subchambers (17) having a substantially circular cross section, each subchamber being at least partially able to be filled with a filler.
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| 申请公布号 |
WO9846859(A1) |
申请公布日期 |
1998.10.22 |
| 申请号 |
WO1998AU00262 |
申请日期 |
1998.04.14 |
| 申请人 |
BARCLAY MOWLEM CONSTRUCTION LIMITED;STURGEON, BARRY, JOHN |
发明人 |
STURGEON, BARRY, JOHN |
| 分类号 |
E21F17/107;(IPC1-7):E21F1/14 |
主分类号 |
E21F17/107 |
| 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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