发明名称 PHYSICAL TRAINING DEVICE AND METHOD
摘要 A physical training device includes two arm portions connected to each other and movable toward and away from each other. Two grip portions are provided at the respective arm portions. The grip portions together have the shape of a ball, such as a basketball or football. A resilient device urges the grip portions away from each other toward an extended position. The physical training device is particularly useful in training for basketball rebounding.
申请公布号 US2011224056(A1) 申请公布日期 2011.09.15
申请号 US20100721239 申请日期 2010.03.10
申请人 ALLEN C RALPH 发明人 ALLEN C. RALPH
分类号 A63B21/02 主分类号 A63B21/02
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