发明名称 GRADING APPARATUS FOR GRADING A SURFACE
摘要 The present invention relates to a grading apparatus (10, 210) comprising an elongate support arm assembly (12, 212) having a mount (16, 216) at one end for attachment to a vehicle (100), and a grading blade (14, 214) attached to the opposing end of the support arm assembly. The grading blade can be positioned outwardly of the vehicle to grade a surface beside the vehicle as the vehicle moves forward.
申请公布号 US2010044062(A1) 申请公布日期 2010.02.25
申请号 US20070525986 申请日期 2007.12.03
申请人 CHALLEN DAVID WILLIAM;CHALLEN WALLACE DAVID 发明人 CHALLEN DAVID WILLIAM;CHALLEN WALLACE DAVID
分类号 E02F3/80;E02F3/76 主分类号 E02F3/80
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