发明名称 Disposable trailer hitch
摘要 A trailer hitch comprising, a hitching ball for a vehicle having an annular groove below the ball, a hitching member for a trailer having a pair of spaced openings extending therethrough, an elongated U-bolt for passage through the openings and in the groove to retain the hitching member to the ball, and a device for clamping the U-bolt to the hitching member.
申请公布号 US5219435(A) 申请公布日期 1993.06.15
申请号 US19910770165 申请日期 1991.10.02
申请人 SPRUNGER, POWELL L. 发明人 SPRUNGER, POWELL L.
分类号 B60D1/07 主分类号 B60D1/07
代理机构 代理人
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