发明名称 Weight lifting bar apparatus with rotatable sleeve element
摘要 Weight lifting apparatus includes a bar to which weights are fixedly secured. The weights are spaced apart from each other and a rotatable sleeve is disposed about the bar between the weights. A pair of collars supports the rotatable sleeve, and the weights are disposed against the collars supporting the sleeve. The collars are secured to the bar.
申请公布号 US5078392(A) 申请公布日期 1992.01.07
申请号 US19900624578 申请日期 1990.12.10
申请人 KRACHT, JAMES F. 发明人 KRACHT, JAMES F.
分类号 A63B21/072 主分类号 A63B21/072
代理机构 代理人
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