发明名称 Methods for cleaning lines on a game playing surface
摘要 A method for clearing lines on a playing surface is provided. The method includes automatic direction of a cleaning device along the lines to clean the lines. The method also preferably includes calibrating the means of measuring the distances moved by the cleaning device along the surface. Associated software is provided as well.
申请公布号 US2007260371(A1) 申请公布日期 2007.11.08
申请号 US20070810418 申请日期 2007.06.05
申请人 YOUNG DAVID W 发明人 YOUNG DAVID W.
分类号 G05D1/00 主分类号 G05D1/00
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