发明名称 |
Putting practice device |
摘要 |
A putting practice device in which the diameter of the ball-receiving cup of the device can be made smaller or larger to sharpen the putting skills of the golfer. Additionally, the ball-receiving copy of the device is designed so that golf balls entering the cup during the practice session will automatically roll outwardly therefrom by force of gravity.
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申请公布号 |
US5857919(A) |
申请公布日期 |
1999.01.12 |
申请号 |
US19970876185 |
申请日期 |
1997.06.13 |
申请人 |
PRINCIPLE PLASTICS |
发明人 |
HOYT, DAVID;ALDCROFT, GARY T. |
分类号 |
A63B57/00;A63B63/00;(IPC1-7):A63B69/36 |
主分类号 |
A63B57/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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