发明名称 Baseball practice device
摘要 A baseball practice device in which a baseball is releasably attached to a "Y" shaped tether system which, in turn, is supported by two horizontal arms arranged in a "Y" shaped configuration. The combination of the horizontal arms and the tether system allows simulation of a pitching environment where the baseball may be presented to the batter with a uniform and repeatable flight path to enhance batting practice.
申请公布号 US5374056(A) 申请公布日期 1994.12.20
申请号 US19930139989 申请日期 1993.10.21
申请人 SCHER, STEVEN L.;MOSS, ROBERT 发明人 SCHER, STEVEN L.;MOSS, ROBERT
分类号 A63B69/00;(IPC1-7):A63B69/40 主分类号 A63B69/00
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