发明名称 Boat ladders
摘要 Ladders for use with inflatable boats or other watercraft include a mounting bracket and a movable boarding step unit having a plurality of steps fixed to an elongated support bar. The mounting bracket is fixed to the transom or other vertical portion of the watercraft and the support bar is contoured so that when its upper end is positioned in the bracket, the steps depend below the watercraft and are firmly held away from it by a portion of the bar bearing against a portion of the watercraft adjacent the mounting bracket.
申请公布号 US4719872(A) 申请公布日期 1988.01.19
申请号 US19860917801 申请日期 1986.10.10
申请人 STEP-ON INC. 发明人 RITTEN, ROBERT G.
分类号 B63B27/14;(IPC1-7):B63B27/14 主分类号 B63B27/14
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