发明名称 Batting practice mat
摘要 A batting practice mat comprising a sheet of dense resilient, thick material having substantially its entire surface perforated by holes slightly smaller than a ball whereby a ball may be inserted in a hole and frictionally retained therein; this sheet is suspended from a bracket and held at the top and at the bottom by a plurality of elastic cables. The bracket is adjustable to sustain the sheet at various levels.
申请公布号 US4142717(A) 申请公布日期 1979.03.06
申请号 US19770862565 申请日期 1977.12.20
申请人 MONACO, ERNEST 发明人 MONACO, ERNEST
分类号 A63B63/00;(IPC1-7):A63B69/40 主分类号 A63B63/00
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