发明名称 Large contact area braces for a ladder
摘要 Large contact areas braces for attachment to the siderails of a ladder maintain the top end of the ladder away from the work surface against which the siderails would ordinarily rest. Each brace provides a large surface area to contact the work surface to prevent defacing of the work surface by the side rails of the ladder. The large contact areas of the braces grip the work surface to prevent the ladder from slipping or sliding. The braces have contact pads that pivot horizontally so that the ladder can straddle corners.
申请公布号 US5165641(A) 申请公布日期 1992.11.24
申请号 US19900510066 申请日期 1990.04.17
申请人 SOUTHERN, DON L. 发明人 SOUTHERN, DON L.
分类号 E06C7/48 主分类号 E06C7/48
代理机构 代理人
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