| 发明名称 |
Draft rigging |
| 摘要 |
|
| 申请公布号 |
US1799078(A) |
申请公布日期 |
1931.03.31 |
| 申请号 |
US19280275729 |
申请日期 |
1928.05.07 |
| 申请人 |
THE SYMINGTON COMPANY |
发明人 |
BARROWS DONALD S. |
| 分类号 |
B61G9/22 |
主分类号 |
B61G9/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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