| 发明名称 |
Collapsible rubber dam. |
| 摘要 |
In a collapsible rubber dam, a fastening portion of a flexible rubber sheet body (1) is fixed on an upper spillway portion (13) of an arch type concrete dam (12) or on a riverbed (23) of a river in a curved form in the longitudinal direction of the body.
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| 申请公布号 |
EP0379327(A1) |
申请公布日期 |
1990.07.25 |
| 申请号 |
EP19900300419 |
申请日期 |
1990.01.15 |
| 申请人 |
BRIDGESTONE CORPORATION |
发明人 |
ENAMI, YASUSHI;MITANI, SHUNJI;SATO, YOSHIHIRO |
| 分类号 |
E02B7/20;E02B7/00;(IPC1-7):E02B7/00 |
主分类号 |
E02B7/20 |
| 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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