| 发明名称 |
Sea anchor |
| 摘要 |
|
| 申请公布号 |
US2818042(A) |
申请公布日期 |
1957.12.31 |
| 申请号 |
US19550531235 |
申请日期 |
1955.08.29 |
| 申请人 |
MANHART CHARLES E |
发明人 |
MANHART CHARLES E. |
| 分类号 |
B63B21/48 |
主分类号 |
B63B21/48 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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