发明授权
- 专利标题: Returning flying ring toy
- 专利标题(中): 返回飞环玩具
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申请号: US800873申请日: 1991-11-27
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公开(公告)号: US5213539A公开(公告)日: 1993-05-25
- 发明人: Alan J. Adler
- 申请人: Alan J. Adler
- 专利权人: Adler Alan John
- 当前专利权人: Adler Alan John
- 主分类号: A63B65/08
- IPC分类号: A63B65/08 ; A63H33/18
摘要:
A returning flying ring toy (10) of modified triangular-ring planform and an improved airfoil comprising an abrupt transition (49) on the upper surface (15-46,48), near the trailing edge (33).
公开/授权文献
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