发明名称 Putting practice ball and device
摘要 A golf putting practice device and ball is provided, wherein the ball has a flat end and a friction face which allow the putting practice ball to slide across the level putting surface of the putting practice device. The specific coefficient of friction provided by the friction face of the putting practice ball reduces the speed and the distance the putting practice ball travels over a putting surface of the putting practice device. This allows a golfer to practice a complete range of putts on a conveniently sized portable device.
申请公布号 US2007093308(A1) 申请公布日期 2007.04.26
申请号 US20040570096 申请日期 2004.09.03
申请人 RICE RICHARD PATRICK B 发明人 RICE RICHARD PATRICK B.
分类号 A63B69/36;A63B43/00;A63B67/02 主分类号 A63B69/36
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