发明名称 Lead arm strap for baseball hitters
摘要 A training aid for baseball hitters to assist in keeping a batter's lead arm flexed in a proper hitting stance. The training aid has a first cuff which attaches to the batter's forearm. A second cuff is attached to the batter's upper arm and one or more elastic straps are connected between the two cuffs.
申请公布号 US4875677(A) 申请公布日期 1989.10.24
申请号 US19870080768 申请日期 1987.08.03
申请人 TETREAULT, ALBERT G. 发明人 TETREAULT, ALBERT G.
分类号 A63B69/00 主分类号 A63B69/00
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