发明名称 Water drainage system for a field having a water impermeable layer
摘要 The tubular element is made with a sleeve formed of a spun bonded polyester material that allows the passage of water and prevents the passage of soil when used for a drainage element. The tubular element is made with small diameters that allows the element to be coiled about a three-dimensional object when used as a cushioning device.
申请公布号 US7811030(B2) 申请公布日期 2010.10.12
申请号 US20090459549 申请日期 2009.07.02
申请人 发明人 BUSSEY, JR. HARRY;BUSSEY, III BUDDY HARRY
分类号 E02B11/00 主分类号 E02B11/00
代理机构 代理人
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