发明名称 INTERCONNECTED JUMPING STICKS
摘要 A jumping stick arrangement in which two jumping sticks are arranged in parallel spaced relation and are interconnected by a laterally extending frame so that two individuals can jump in unison. The laterally extending frame connecting the jumping sticks can be arranged so as to permit one jumping stick to be moved in a circle at least part way around the other jumping stick.
申请公布号 US3751032(A) 申请公布日期 1973.08.07
申请号 USD3751032 申请日期 1972.02.22
申请人 BOYLE J,US 发明人 BOYLE J,US
分类号 A63B25/08;(IPC1-7):A63B25/08 主分类号 A63B25/08
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