发明名称 Portable sign
摘要 A sign post is supported by a separable base anchored in the ground by a pair of ground-piercing blades depending from a tubular ground contact element associated with the base. A base section of the post is secured to the tubular element closer to one of the blades. A stabilizer bar projects from the tubular element laterally of the post.
申请公布号 US4343449(A) 申请公布日期 1982.08.10
申请号 US19800152147 申请日期 1980.05.21
申请人 TRIAD SERVICE & MARKETING, LTD. 发明人 OSTHUS, RAMON L.
分类号 E04H12/22;G09F7/18;(IPC1-7):A45F3/44 主分类号 E04H12/22
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