发明名称 METHOD AND APPARATUS FOR SECURING A TOP PORTION OF A LADDER
摘要 A method and apparatus for securing a top portion of a ladder. A first step involves providing a ladder having a pair of parallel side rails. A second step involves providing at least one belt having an inner ladder engaging surface and an outer non-slip surface. A third step involves securing the at least one belt in a selected position to one of the pair of parallel side rails at a top portion of the ladder with the outer non-slip surface engaging a surface against which the top portion of the ladder rests.
申请公布号 CA2369199(A1) 申请公布日期 2003.07.24
申请号 CA20022369199 申请日期 2002.01.24
申请人 MACSWEEN, JOHN P.;MACSWEEN, HEATHER 发明人 MACSWEEN, JOHN P.;MACSWEEN, HEATHER
分类号 E06C7/48;(IPC1-7):E06C7/00 主分类号 E06C7/48
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