发明名称 Tennis racket
摘要 A tennis racket having an unconventional weight and stiffness distribution providing for the same swing weight as rackets of the prior art, a large distance of the center of percussion from the handle end, and a weight means in the grip portion of the racket for reducing the shock and vibration transmitted to the player's arm, when the player impacts the ball with the racket.
申请公布号 US4690405(A) 申请公布日期 1987.09.01
申请号 US19830543431 申请日期 1983.10.19
申请人 FROLOW, JACK L. 发明人 FROLOW, JACK L.
分类号 A63B59/00;(IPC1-7):A63B49/04 主分类号 A63B59/00
代理机构 代理人
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