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 US2010183369(A1) 申请公布日期 2010.07.22
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 E01C19/42;E01C19/48 主分类号 E01C19/42
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