| 发明名称 |
Multi-layer softball |
| 摘要 |
The present invention relates to softballs that have very low compression, but maintain the traditional COR values of standard urethane core softballs. The present invention comprises a softball having a center core and at least one core or mantle layer to produce a softball having the performance of a traditional ball.
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| 申请公布号 |
US2004102265(A1) |
申请公布日期 |
2004.05.27 |
| 申请号 |
US20030634344 |
申请日期 |
2003.08.05 |
| 申请人 |
LALIBERTY RONALD P.;LACROIX MATTHEW K.;FURLONG JOHN F. |
发明人 |
LALIBERTY RONALD P.;LACROIX MATTHEW K.;FURLONG JOHN F. |
| 分类号 |
A63B37/06;(IPC1-7):A63B37/00 |
主分类号 |
A63B37/06 |
| 代理机构 |
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