发明名称 Recreational structure including flexible tubular member
摘要 A recreational structure is disclosed which includes one or more comparatively thick, soft, flexible tubular members supported by a support structure. The support structure may be a pair of rigid spaced apart inclined ramps or a pair of spaced apart sawhorse structures. The ramps or the sawhorses have structure thereon to prevent lateral movement of the tubular members.
申请公布号 US4189149(A) 申请公布日期 1980.02.19
申请号 US19770831535 申请日期 1977.09.08
申请人 KATSIAFICAS, MARY D 发明人 KATSIAFICAS, MARY D
分类号 A63B9/00;(IPC1-7):A63B9/00 主分类号 A63B9/00
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