发明名称 Swimming pool ladder
摘要 A molded plastic pool ladder of A-frame shape having first and second sides consisting of assembled frame channel rail structures with a ladder slidable between lower and higher positions in one of the frame channel rail structures and movable feet on the bottom of the frame channel rail structures and a platform connected to the frame channel rail structures by a button connection.
申请公布号 US6769513(B2) 申请公布日期 2004.08.03
申请号 US20020042110 申请日期 2002.01.08
申请人 PETTIT FREDERICK M. 发明人 PETTIT FREDERICK M.
分类号 E04H4/14;E06C1/14;E06C1/18;E06C1/39;E06C7/00;E06C7/08;E06C7/16;E06C7/18;E06C7/42;(IPC1-7):E06C7/16 主分类号 E04H4/14
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