发明名称 |
LARGE-DIAMETER TENNIS BALL |
摘要 |
A tennis ball has a diameter about 5% to about 13% greater than the diameter of a standard tennis ball. The ball has about the same weight, and the thickness of the core of the ball is less than that of a standard ball. The rebound and coefficient of restitution of the ball are equal to or better than the rebound and coefficient of restitution of a standard ball. |
申请公布号 |
ZA8500571(B) |
申请公布日期 |
1985.09.25 |
申请号 |
ZA19850000571 |
申请日期 |
1985.01.24 |
申请人 |
WILSON SPORTING GOODS COMPANY |
发明人 |
BRIAN CLAIRE |
分类号 |
A63B39/00;A63B39/06;A63B43/00 |
主分类号 |
A63B39/00 |
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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