发明名称 PROTECTIVE CAP FOR LADDERS
摘要 A protective ladder cap for fitting over the end of a rail of a ladder is provided. The cap has an open end for fitting over the rail and a closed end. The ladder cap has tapered internal ribs for engaging the end of a side rail of a ladder. The ladder caps prevent the ladder side rails from damaging the surface upon which the ladder leans when in use.
申请公布号 US2002189900(A1) 申请公布日期 2002.12.19
申请号 US20010881590 申请日期 2001.06.14
申请人 BREMICK LORI J. 发明人 BREMICK LORI J.
分类号 E06C7/42;E06C7/48;(IPC1-7):E06C7/42 主分类号 E06C7/42
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