发明名称 Ladder scaffold
摘要 A scaffold plank hanger is suspended from a rung of a ladder by hooks engaging such rung which are spaced apart less than the width of the ladder. Such hooks carry a crossbar of a length greater than the width of the ladder. A scaffold plank has hooks projecting from one end which are hooked over opposite end portions of the hanger crossbar between its ends and the adjacent ladder rails, respectively.
申请公布号 US4823911(A) 申请公布日期 1989.04.25
申请号 US19880232351 申请日期 1988.08.15
申请人 DORE, STEVEN A. 发明人 DORE, STEVEN A.
分类号 E06C7/16;(IPC1-7):E06C7/16;E04G1/30 主分类号 E06C7/16
代理机构 代理人
主权项
地址