发明名称 Ladder leveler
摘要 A simple ladder leveling device which slides onto either leg (8) of a ladder. The device is secured onto the ladder by sliding underneath and around rungs of the ladder. Furthermore, the ladder leveler includes a channel sleeve (3) with a slidable intrack leg (5) for adjusting the ladder leveler to the length desired; the intrack leg (5) is secured onto the channel sleeve (3) by an insertable holding pine (10) traversing the intrack leg (5) and the channel sleeve (3).
申请公布号 US5174412(A) 申请公布日期 1992.12.29
申请号 US19910806106 申请日期 1991.12.12
申请人 VEGA, HENRY M. 发明人 VEGA, HENRY M.
分类号 E06C7/44 主分类号 E06C7/44
代理机构 代理人
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