发明名称 ESCAPE LADDER
摘要 An escape ladder includes a first leg that is attached to a support surface, such as an outside wall of a building, and a second leg that is movable with respect to the first leg. Rungs are movably attached to the first leg and to the second leg and move between a deployed orientation extending outwardly from the first leg to a stored orientation extending along the long axis of the first leg. The legs and the rungs are rigid.
申请公布号 US2004020714(A1) 申请公布日期 2004.02.05
申请号 US20020212020 申请日期 2002.08.05
申请人 OSTYN VALERE R. 发明人 OSTYN VALERE R.
分类号 E06C9/08;(IPC1-7):E06C9/00 主分类号 E06C9/08
代理机构 代理人
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