发明名称 Golf practice aid
摘要 This invention is a visual golf practice aid for improving hand-eye coordination by the person actually being able to see the correct way to swing. This is accomplished through a plurality of parallel diagonal lines on a generally square base with a grid of large and small dots to indicate any undesirable sway movement from the fixed fulcrum point.
申请公布号 US4545581(A) 申请公布日期 1985.10.08
申请号 US19830546283 申请日期 1983.10.28
申请人 WILLIAMSON, PAUL J. 发明人 WILLIAMSON, PAUL J.
分类号 A63B69/36;(IPC1-7):A63B69/36 主分类号 A63B69/36
代理机构 代理人
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