发明名称 Electronic athletic equipment
摘要 A tennis racquet or other athletic instrument configured for striking a moveable ball or other playing element includes electronic sensors for providing an audible or audio-visual indication of the location on the racquet or instrument at which contact is made with the ball or other playing element. Various devices for sensing the location of contact are disclosed.
申请公布号 US4257594(A) 申请公布日期 1981.03.24
申请号 US19780925141 申请日期 1978.07.17
申请人 CONREY, RICHARD N. 发明人 CONREY, RICHARD N.;MCQUAID, PHILLIP T.;YURSIS, PAUL J.
分类号 A63B49/00;A63B24/00;A63B69/00;A63B69/36;A63B69/38;A63B71/06;(IPC1-7):A63B61/00 主分类号 A63B49/00
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