发明名称 Hoisting apparatus for pleasure boats
摘要 The invention relates to a hoist for boats. The hoist comprises two booms which are connected at one of their ends by a cross member. The hoist is supported by three wheels which are associated with only one boom and with the cross member, and a counterweight is located in the angle formed by this boom and this cross member. The invention can be used for lowering small pleasure boats into the water.
申请公布号 US4279565(A) 申请公布日期 1981.07.21
申请号 US19780941081 申请日期 1978.09.11
申请人 VERDY, ROBERT E. 发明人 VERDY, ROBERT E.
分类号 B63B23/02;B60P3/10;B63C3/06;B63C3/12;B63C15/00;(IPC1-7):B60P3/10 主分类号 B63B23/02
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