发明名称 Methods for adjusting weight resistance to exercise
摘要 An exercise dumbbell includes a handle member and weight plates maintained in spaced relationship at opposite ends thereof. Weight selectors are movable into and out of engagement with different combinations of the weight plates to secure a desired amount of mass to the handle. The weight selectors are preferably nested within respective ends of the handle member and accessible via upwardly opening slots in the weight plates.
申请公布号 US7497813(B1) 申请公布日期 2009.03.03
申请号 US20060476988 申请日期 2006.06.27
申请人 KRULL MARK A 发明人 KRULL MARK A.
分类号 A63B21/075;A63B21/072 主分类号 A63B21/075
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