发明名称 Neck exercising apparatus
摘要 A neck exercising apparatus (10) including an elongated support member (14) adapted to be suspended from a door (100) and operatively connected to a generally U-shaped leaf spring member (20) having a head rest member (30) movably attached to the outboard leg (22) of the spring member (20); wherein, the position of the head rest member (30) on the spring member (20) determines the amount of resistance provided by the spring member (20).
申请公布号 US5135445(A) 申请公布日期 1992.08.04
申请号 US19910692853 申请日期 1991.04.29
申请人 CHRISTENSEN, KIM D.;GREENAWALT, KENT S.;SPORER, C. F. SUNNY;MOORE, J. FORREST 发明人 CHRISTENSEN, KIM D.;GREENAWALT, KENT S.;SPORER, C. F. SUNNY;MOORE, J. FORREST
分类号 A63B21/02;A63B21/16;A63B23/025 主分类号 A63B21/02
代理机构 代理人
主权项
地址