发明授权
US4385769A Invalid support chair structure 失效
支撑椅结构无效

Invalid support chair structure
摘要:
A multiple purpose wheel chair having a lower wheeled carriage and an upper invalid support chair detachable from the carriage for manually transporting and supporting an invalid in bed or for being bathed or for other purposes.
公开/授权文献
信息查询
0/0