发明授权
US5231709A Support deck for mattress or seat 失效
用于床垫或座椅的支撑台

Support deck for mattress or seat
摘要:
A support deck for a sofa bed having a plurality of wires arranged in a grid and being interconnected at grid intersections such that when a force is applied to one side of the deck the deck will yield but when a force is applied to the opposite side the deck will be relatively unyieldable.
公开/授权文献
信息查询
0/0