发明名称 Baseball batting swing training apparatus and method of using same
摘要 An apparatus for building muscle memory to develop a more rapid baseball swing and avoid casting of the hands and bat during the swing. Such apparatus includes a first attachment member connectable to an upper arm and a second attachment member connectable to an opposing forearm interposed by an elongated tether to be aligned along a forearm upon initially entering into a hitter's stance. A method for using such apparatus is also disclosed herein.
申请公布号 US2004058757(A1) 申请公布日期 2004.03.25
申请号 US20030670921 申请日期 2003.09.25
申请人 GRAY JONATHAN D. 发明人 GRAY JONATHAN D.
分类号 A63B21/055;A63B69/00;(IPC1-7):A63B69/00 主分类号 A63B21/055
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