发明名称 Coaches field analysis kit
摘要 A kit for use by a coach or coaches on a regulation football playing field during formation and play analysis and for teaching players formations and plays has a plurality of elements forming sets symbolizing an offensive unit, a defensive unit, and route patterns. The elements are placeable directly on a regulation playing field to assist in setting up offensive and defensive formations and sets.
申请公布号 US4047308(A) 申请公布日期 1977.09.13
申请号 US19760664005 申请日期 1976.03.04
申请人 WHEELER, ANTHONY A. 发明人 WHEELER, ANTHONY A.
分类号 G09B19/22;(IPC1-7):A63B71/02 主分类号 G09B19/22
代理机构 代理人
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