发明名称 Sit-up exercising device
摘要 An exercising device for assisting in sit-up and leg-raising exercises has a frame with a flange adapted to be trapped beneath a door, the frame supporting a resilient foot engaging roller with shaft extensions which form hand grips. Hand grips extend out from the ends of the resilient roller.
申请公布号 US4176835(A) 申请公布日期 1979.12.04
申请号 US19780869586 申请日期 1978.01.16
申请人 AZIZ, EDWARD D 发明人 AZIZ, EDWARD D
分类号 A63B21/16;A63B23/02;(IPC1-7):A63B21/00 主分类号 A63B21/16
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