发明名称 Grass protecting walkway grid
摘要 A grass protecting walkway having a substantially flat elongated grid-like structure which defines a plurality of polygonal apertures is disclosed. The grid allocates its bottom and top planar surface areas approximately equally between the surface area of the apertures and the surface area of structured cross members.
申请公布号 US4596731(A) 申请公布日期 1986.06.24
申请号 US19840651236 申请日期 1984.09.17
申请人 CUDMORE, WARNER J. G.;VILVEN, DOUG O.;CUDMORE, H. KEITH 发明人 CUDMORE, WARNER J. G.;VILVEN, DOUG O.;CUDMORE, H. KEITH
分类号 A63C19/04;A63C19/12;E01C5/20;E01C9/00;E01C13/08;E04F19/10;(IPC1-7):B32B3/10 主分类号 A63C19/04
代理机构 代理人
主权项
地址
您可能感兴趣的专利