发明名称 TOPPLE-RESISTANT BASE MECHANISM
摘要 Gust Busters solves the problem of signs being blown over in the wind or being knocked down by the pedestrians or bicycle or the like, by preventing the inward collapsing and outward expansion of the legs of the sign and thus maintaining its ideal position for optimum readability.
申请公布号 US2009217562(A1) 申请公布日期 2009.09.03
申请号 US20090396454 申请日期 2009.03.02
申请人 WILSON GEORGE H 发明人 WILSON GEORGE H.
分类号 G09F7/00 主分类号 G09F7/00
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