发明授权
US4079994A Seat with removable cushion 失效
座椅带可拆卸的垫子

Seat with removable cushion
摘要:
A seat cushion is readily installed onto and removed from a seat frame utilizing structure which disengages the seat cushion from the frame upon manually flexing the cushion and engages the cushion with the frame upon unflexing the cushion.
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