发明名称 Coin operated watercraft winches/capstans
摘要 Capstans and winches secured to beach or boat launching ramp. Operate on electric power for predetermined time interval upon insertion of coin, token or card for common use by the general public. Assist in launching and especially hauling out of watercraft and watercraft carriers. Also reduces potential for personal injury and property damage from loss of traction on slippery slopes.
申请公布号 US4717005(A) 申请公布日期 1988.01.05
申请号 US19860882469 申请日期 1986.07.07
申请人 JONES, FREDERICK L. 发明人 JONES, FREDERICK L.
分类号 G07F17/00;(IPC1-7):G07F7/00;B66D1/06 主分类号 G07F17/00
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