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发明名称
Game ball with clock
摘要
The present invention includes ball having integrated timers for measuring or counting at least one time period.
申请公布号
US6945887(B2)
申请公布日期
2005.09.20
申请号
US20010014297
申请日期
2001.12.11
申请人
CLASSIC SPORT COMPANIES, INC.
发明人
OISTER MICHAEL J.;WISENER CHRISTOPHER S.;BOETTCHER WILLIAM C.;DOHERTY THOMAS M.
分类号
A63B43/00;A63B69/00;A63B71/06;(IPC1-7):A67B67/00
主分类号
A63B43/00
代理机构
代理人
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