发明名称 Wheelchair tray assembly
摘要 A wheelchair tray assembly is provided which includes spring biased hook elements to secure a tray to the arms of a wheelchair. The tray is mounted to tray supports which permit movement of the tray perpendicular to the direction of movement of the hook elements. The entire unit when collapsed is substantially the same size as a conventional cafeteria tray.
申请公布号 US4373756(A) 申请公布日期 1983.02.15
申请号 US19800197651 申请日期 1980.10.16
申请人 PURDY, GEOFFREY H.;JACKSON, ROBERT R. 发明人 PURDY, GEOFFREY H.;JACKSON, ROBERT R.
分类号 A47C7/68;(IPC1-7):A47B39/00 主分类号 A47C7/68
代理机构 代理人
主权项
地址