| 发明名称 |
Roller skate |
| 摘要 |
|
| 申请公布号 |
US2502153(A) |
申请公布日期 |
1950.03.28 |
| 申请号 |
US19470793808 |
申请日期 |
1947.12.26 |
| 申请人 |
UNION HARDWARE COMPANY |
发明人 |
JACK EDWARD M. |
| 分类号 |
A63C17/02 |
主分类号 |
A63C17/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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