| 发明名称 |
Method and apparatus for evaluating rebounding characteristics of objects |
| 摘要 |
A performance method and apparatus for evaluating the bouncing or rebounding characteristics of objects such as balls used in games, and for evaluating the energy-absorbing and surface characteristics of playing surfaces of games.
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| 申请公布号 |
US4006626(A) |
申请公布日期 |
1977.02.08 |
| 申请号 |
US19740530991 |
申请日期 |
1974.12.09 |
| 申请人 |
RUZICKA, JOSEF;RUZICKA, PETR O. |
发明人 |
RUZICKA, JOSEF;RUZICKA, PETR O. |
| 分类号 |
A63B47/00;G01N3/52;(IPC1-7):G01N3/52 |
主分类号 |
A63B47/00 |
| 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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