发明名称 THE THOMAS BUBBLE RING
摘要 The bubble ring's diameter measures 6 1/2" on the outside, with bubbles located at 45 degree angle on each side. The location of the bubble enables the ring to be level when flipped on either side. A stick is used to manoeuvre its movement.
申请公布号 CA2676821(A1) 申请公布日期 2011.02.27
申请号 CA20092676821 申请日期 2009.08.27
申请人 HILTON, THOMAS 发明人 HILTON, THOMAS
分类号 A63B67/14;A63B37/00 主分类号 A63B67/14
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