发明名称 Portable ramp assembly and method of construction
摘要 A portable ramp assembly and method of construction provides a ramp assembly with a pair of side rails and a plurality of panels adapted for releasable attachment to the side rails. The panels have an upper support surface and a like lower support surface facing opposite the upper support surface. The panels are individually removable from the side rails to interchange the upper and lower support surfaces.
申请公布号 US2006200919(A1) 申请公布日期 2006.09.14
申请号 US20050078760 申请日期 2005.03.11
申请人 MAGLINE, INC. 发明人 FRAHM JEFFRY R.;ROYALTY MATTHEW A.;MUNN DANIEL C.
分类号 E01D1/00 主分类号 E01D1/00
代理机构 代理人
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