发明名称 Magnetically Adjustable Dumbbells
摘要 A magnetically dumbbell device and method are disclosed. The dumbbell device has a central base unit with at least one magnetic piece at each end of the base unit and one or more weights attachable to the ends of the base unit by means of magnetic force.
申请公布号 US2009048080(A1) 申请公布日期 2009.02.19
申请号 US20070280215 申请日期 2007.02.13
申请人 DANIEL NIR 发明人 DANIEL NIR
分类号 A63B21/075 主分类号 A63B21/075
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