发明名称 Stationary rope climb exercise device
摘要 An exercise device which enables one to experience the benefits of rope climbing exercise while remaining on the ground. A rope extends between upper and lower winding drums. Tensioning springs are associated with the upper drum to provide increasing tension on the rope as it is pulled downwardly.
申请公布号 US4270750(A) 申请公布日期 1981.06.02
申请号 US19780936401 申请日期 1978.08.24
申请人 MALCOLM, ROGER J. 发明人 MALCOLM, ROGER J.
分类号 A63B7/04;(IPC1-7):A63B21/04 主分类号 A63B7/04
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