发明名称 |
Manhole cover |
摘要 |
Manhole covers and inlet gratings can jump up because they have regions which are located outside the bearing edge. According to the invention, it is proposed to place these outer regions so much lower that they are no longer touched by the vehicle wheels.
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申请公布号 |
DE3623654(A1) |
申请公布日期 |
1988.01.28 |
申请号 |
DE19863623654 |
申请日期 |
1986.07.12 |
申请人 |
PASSAVANT-WERKE AG |
发明人 |
EICHELMANN,HORST,DIPL.-ING. |
分类号 |
E02D29/14;(IPC1-7):E02D29/14 |
主分类号 |
E02D29/14 |
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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