| 发明名称 |
Trench box |
| 摘要 |
|
| 申请公布号 |
US3394509(A) |
申请公布日期 |
1968.07.30 |
| 申请号 |
US19660577331 |
申请日期 |
1966.09.06 |
| 申请人 |
DE WITT MCKINLEY |
发明人 |
MCKINLEY DE WITT |
| 分类号 |
E04F19/08 |
主分类号 |
E04F19/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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