发明名称 Ladder support
摘要 A ladder support apparatus includes a generally U-shaped roof attachment portion having a pair of spaced apart legs connected at rearward ends to a base. The legs have apertures formed therethrough to receive nails which will releasably fasten the roof attachment portion to the roof or other portion of a building. A ladder retention portion includes a strap formed into a loop, with the upper end of a ladder slidably journaled through the loop. The ladder retention portion is connected to the roof attachment portion of the ladder support apparatus, to retain the upper end of a ladder in position relative to the roof attachment portion.
申请公布号 US5775465(A) 申请公布日期 1998.07.07
申请号 US19970843997 申请日期 1997.04.18
申请人 VOSSLER, DARBY J. 发明人 VOSSLER, DARBY J.
分类号 E06C7/16;E06C7/48;(IPC1-7):E06C7/48 主分类号 E06C7/16
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