发明名称 SCREED SYSTEM
摘要 A screed rail system for placing uncured concrete includes a pair of rails positioned to lie spaced-apart and parallel to one another and a screed plate supported between the rails to move along the rails to form a final grade level of uncured concrete in a work area.
申请公布号 US2009226257(A1) 申请公布日期 2009.09.10
申请号 US20090400585 申请日期 2009.03.09
申请人 LINDLEY JOSEPH W 发明人 LINDLEY JOSEPH W.
分类号 E01C19/22 主分类号 E01C19/22
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