发明名称 Portable fence-scaling step
摘要 A portable step has a tread member to which is pivoted corresponding ends of a pair of support arms that terminate at their opposite ends in projections which extend from the arms at an acute angle thereto. The support arms are rockable to positions in which they substantially parallel one another and extend in the same direction from the tread member, thereby enabling the projections to be passed through openings in a fence or other barrier to suspend the tread member in a substantially horizontal position at an intermediate level between the top and bottom of the fence, thereby facilitating scaling of the fence by a person.
申请公布号 US5244058(A) 申请公布日期 1993.09.14
申请号 US19920819477 申请日期 1992.01.10
申请人 CARLSON, ROBERT M.;ROBAR, EDMUND F. 发明人 CARLSON, ROBERT M.;ROBAR, EDMUND F.
分类号 E06C9/04 主分类号 E06C9/04
代理机构 代理人
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