发明名称 Crutch assembly
摘要 A crutch assembly having right and left leg members and a horizontal cross-body member. The right and left legs can swivel both forward and backward and from side to side. Swivel joints contained within the aluminum tubing provide for the movement of the legs.
申请公布号 US5673719(A) 申请公布日期 1997.10.07
申请号 US19950549473 申请日期 1995.10.27
申请人 SHOFNER, MARTIN K. 发明人 SHOFNER, MARTIN K.
分类号 A61H3/02;(IPC1-7):A61H3/02 主分类号 A61H3/02
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