发明名称 Movable backrest for a chair
摘要 A movable backrest for a chair comprises a frame that is fixed to the chair, at least a flexible connecting element connected to the frame, and at least a backrest connected to the connecting element. Since the connecting element is flexible, the backrest and the back of the user can be moved simultaneously along with the movement of the back of the user, providing a comfortable support to the back of the user.
申请公布号 US7427107(B2) 申请公布日期 2008.09.23
申请号 US20060502171 申请日期 2006.08.10
申请人 YANG PO HSUAN 发明人 YANG PO HSUAN
分类号 A47C7/40 主分类号 A47C7/40
代理机构 代理人
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