发明名称 Plurality of baseballs each having different colored indicia for training baseball batters and a method for use
摘要 A baseball batter training kit is provided which includes a plurality of baseballs each having different colored indicia on the baseball. A baseball batter is required to recognize and identify the color of the indicia after the baseball is pitched, causing the batter to focus on the ball as it is delivered by the pitcher toward the hitting zone.
申请公布号 US5607152(A) 申请公布日期 1997.03.04
申请号 US19950550456 申请日期 1995.10.30
申请人 STRASSBURGER, JOHN 发明人 STRASSBURGER, JOHN
分类号 A63B37/12;A63B43/00;A63B69/00;(IPC1-7):A63B69/00 主分类号 A63B37/12
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