发明名称 Ladder support member
摘要 An ancillary ladder support or leg is disclosed which may be attached to ladders of various types (including wood, metal, or fiberglass) and configurations to provide additional support and stability for the ladder. The device uses the leg member of the device to engage a fastener so as to allow attachment, removal and repositioning of the device relative to the ladder without the use of additional tools.
申请公布号 US4625832(A) 申请公布日期 1986.12.02
申请号 US19850796751 申请日期 1985.11.12
申请人 HARTLEY, D. WAYNE 发明人 HARTLEY, D. WAYNE
分类号 E06C1/20;E06C1/38;E06C7/42;(IPC1-7):E06C1/20 主分类号 E06C1/20
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