发明名称 Demountable boat trailer step
摘要 A demountable boat trailer step including a foot plate having a pair of parallel slots adjacent each end and running substantially the full width of the plate, a plurality of bolts, a pair of clamp bars, and a plurality of nuts. The foot plate rests on the top surface of a boat trailer frame member and is demountably attached by means of bolts extending through the slots and engaging clamp bars contacting the undersurface of the frame member. Slots in the foot plate permit mounting on various sizes of frame members. Adapters are provided for attachment of the step to cylindrical frame members.
申请公布号 US4056270(A) 申请公布日期 1977.11.01
申请号 US19760702182 申请日期 1976.07.02
申请人 GREENFIELD, KENNETH 发明人 GREENFIELD, KENNETH
分类号 B60R3/00;(IPC1-7):B60R3/00 主分类号 B60R3/00
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