| 发明名称 |
Cover panel structure of a ball surface |
| 摘要 |
A cover panel structure for making a ball surface includes multiple secondary pieces of different shapes and dimensions to be combined together to form an oval shape.
|
| 申请公布号 |
US2007010360(A1) |
申请公布日期 |
2007.01.11 |
| 申请号 |
US20050177957 |
申请日期 |
2005.07.08 |
| 申请人 |
CHANG YEN-LI |
发明人 |
CHANG YEN-LI |
| 分类号 |
A63B37/12;A63B39/06;A63B41/08 |
主分类号 |
A63B37/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
