| 发明名称 |
Trough-shaped steel sleepers for high-speed trains have cross-walls of steel sheet with a specific octagonal shape welded to them. |
| 摘要 |
The conventional trough-shaped steel sleepers have cross-walls of steel sheet with a specific octagonal shape (sic) welded to them.
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| 申请公布号 |
DE19903792(A1) |
申请公布日期 |
2000.08.31 |
| 申请号 |
DE19991003792 |
申请日期 |
1999.02.01 |
| 申请人 |
DOLEZAL, GUENTER |
发明人 |
DOLEZAL, GUENTER |
| 分类号 |
E01B3/16;(IPC1-7):E01B3/16 |
主分类号 |
E01B3/16 |
| 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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