发明名称 System, method, and apparatus for athletic swing training
摘要 A system for swing training including a swing plane component defining a predefined plane around an athlete, a planar guidance component configured to guide a striking member along the predefined plane, and a securing member configured to couple the planar guidance component to the striking member.
申请公布号 US7494421(B2) 申请公布日期 2009.02.24
申请号 US20050053299 申请日期 2005.02.07
申请人 ELKINS DANNY 发明人 ELKINS DANNY
分类号 A63B69/36 主分类号 A63B69/36
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