发明名称 Lightweight non-inflatable flotation device
摘要 A lightweight, non-inflatable flotation device for assisting a person engaged natatorial activities or one engaged in aquatic therapy who might not otherwise be capable of performing such functions. The flotation device attaches to the extremities of the user to provide additional buoyancy. It is comprised of a elongate piece of relatively soft, pliable material, i.e., closed cell expanded polymer material, which is folded around the hand or foot of the user and held in place by retaining straps.
申请公布号 US5219308(A) 申请公布日期 1993.06.15
申请号 US19920905815 申请日期 1992.06.29
申请人 ROTHHAMMER, REED 发明人 ROTHHAMMER, REED
分类号 B63C9/115 主分类号 B63C9/115
代理机构 代理人
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