发明名称 Wheelchair seat cushion
摘要 A wheelchair seating system preferably for use with an inflatable cushion device such as that incorporated herein by reference includes a base suitable for containing the components necessary to provide for either manual or automatic inflation and deflation of the lower cushion incorporated in the seating system and the upper cushion upon which a user sits.
申请公布号 US5473313(A) 申请公布日期 1995.12.05
申请号 US19930153350 申请日期 1993.11.17
申请人 GRAEBE, JR., WILLIAM F. 发明人 GRAEBE, JR., WILLIAM F.
分类号 A47C4/54;A61G5/10;(IPC1-7):G08B21/00 主分类号 A47C4/54
代理机构 代理人
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