发明名称 Automatically adjustable rolling screed
摘要 A material leveling system includes a leveling-implement assembly adapted for leveling material to a final grade level, a frame supporting the leveling-implement assembly, and an implement positioning assembly controlling the position of the leveling-implement assembly relative to the frame. The leveling-implement assembly includes an implement that contacts a construction material during the leveling process.
申请公布号 US8322946(B2) 申请公布日期 2012.12.04
申请号 US20100691305 申请日期 2010.01.21
申请人 LINDLEY JOSEPH W. 发明人 LINDLEY JOSEPH W.
分类号 E01C19/22 主分类号 E01C19/22
代理机构 代理人
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