| 发明名称 |
Aerodynamic control surface on a golf club for training purposes |
| 摘要 |
The present invention is a unique and improved training aid to assist the golfer in learning these skills. The invention has deployable fins that deploy during a backswing and retract during a downswing.
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| 申请公布号 |
US7819753(B1) |
申请公布日期 |
2010.10.26 |
| 申请号 |
US20090629751 |
申请日期 |
2009.12.02 |
| 申请人 |
CALLAWAY GOLF COMPANY |
发明人 |
GALLOWAY J. ANDREW;HOCKNELL ALAN |
| 分类号 |
A63B69/36 |
主分类号 |
A63B69/36 |
| 代理机构 |
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代理人 |
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