| 发明名称 |
VARIABLE-RESISTANCE EXERCISE DEVICE |
| 摘要 |
A portable, variable-resistance exercise device comprised of a retractable cable connected to a spring assembly, the spring having a plurality of springs that are selectively connectable to each other to vary the resistance exerted on the cable.
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| 申请公布号 |
US2011237407(A1) |
申请公布日期 |
2011.09.29 |
| 申请号 |
US201113074239 |
申请日期 |
2011.03.29 |
| 申请人 |
KALEAL ROBERT L;CARBONE DOMINIC G |
发明人 |
KALEAL ROBERT L.;CARBONE DOMINIC G. |
| 分类号 |
A63B21/012 |
主分类号 |
A63B21/012 |
| 代理机构 |
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