| 发明名称 |
Protective device for removing gas from beneath foundations, comprises casing containing fan unit |
| 摘要 |
The protective device generates a pressure difference and/or gas flow in order to remove gases accumulated beneath a foundation comprises a fan casing (23) containing a fan unit (25) with at least one fan. |
| 申请公布号 |
SE521134(C2) |
申请公布日期 |
2003.10.07 |
| 申请号 |
SE20020002340 |
申请日期 |
2002.07.30 |
| 申请人 |
JOERGEN HALLBERG |
发明人 |
JOERGEN HALLBERG |
| 分类号 |
E02D31/00;(IPC1-7):E02D31/00 |
主分类号 |
E02D31/00 |
| 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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