发明名称 Count it racket
摘要 A counting racket comprises a racket assembly defined by a handle, a throat and a racket face. The throat extending from the handle to the racket face. The racket assembly housing a electronic components which comprise: a controller, a memory, a power source, an acoustic sensor, a speaker, and at least one switch. The electronic components constructed and arranged to count a number of hits made when an object strikes the racket face. The electronic components further constructed and arranged to audibly recite the number of hits made by the object against the racket face.
申请公布号 US2002068652(A1) 申请公布日期 2002.06.06
申请号 US20010952202 申请日期 2001.09.13
申请人 SIMS STEWART;SIVAN MICHAEL 发明人 SIMS STEWART;SIVAN MICHAEL
分类号 A63B59/04;A63B71/06;(IPC1-7):A63B49/00;A63B59/00 主分类号 A63B59/04
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