| 发明名称 |
Adjustable drain |
| 摘要 |
|
| 申请公布号 |
US2266043(A) |
申请公布日期 |
1941.12.16 |
| 申请号 |
US19390276319 |
申请日期 |
1939.05.29 |
| 申请人 |
HOWARD HUTCHINS GEORGE |
发明人 |
HUTCHINS GEORGE HOWARD |
| 分类号 |
E03C1/244 |
主分类号 |
E03C1/244 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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