发明名称 Multi-purpose portable lay-down post and fencing system
摘要 A portable, fold-over post for use on both outdoor and indoor surfaces includes a vertical member; a first spring removably connected to the vertical member, said spring having a mounting spike integrally formed therewith for insertion into a soft, outdoor surface, and said spring allowing the post to fold over upon impact; and a foot assembly interchangeable with said spring and suitable for supporting said post on a hard surface.
申请公布号 US2005173690(A1) 申请公布日期 2005.08.11
申请号 US20050052379 申请日期 2005.02.07
申请人 PENNING DENNIS E. 发明人 PENNING DENNIS E.
分类号 E04H17/18;(IPC1-7):E04H17/16 主分类号 E04H17/18
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