| 发明名称 |
Method and apparatus for installing highway drainage mat |
| 摘要 |
Method and apparatus for inserting an elongated bendable drainage mat having a rectangular cross section below the surface of the ground in a vertical orientation in an advancing trench segment.
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| 申请公布号 |
US4597693(A) |
申请公布日期 |
1986.07.01 |
| 申请号 |
US19850761217 |
申请日期 |
1985.07.31 |
| 申请人 |
MONSANTO COMPANY |
发明人 |
MCQUARY, CHARLES R.;DEMPSEY, BARRY J. |
| 分类号 |
E02B11/02;E02F5/10;(IPC1-7):E02B11/00;E02D31/02;F16L1/02 |
主分类号 |
E02B11/02 |
| 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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