发明名称 Collapsible structures
摘要 A collapsible structure has a first panel, a second panel, and a third panel. Each panel has a foldable frame member having a folded and an unfolded orientation, with a fabric material covering portions of the frame member to form the panel when the frame member is in the unfolded orientation. One first side of the first panel is coupled to one side of the second panel, and one side of the third panel is coupled to the fabric of the second panel.
申请公布号 US6698441(B1) 申请公布日期 2004.03.02
申请号 US20000717620 申请日期 2000.11.21
申请人 PATENT CATEGORY CORP. 发明人 ZHENG YU
分类号 A63B9/00;E04H15/00;E04H15/14;E04H15/40;E04H15/56;E04H15/58;(IPC1-7):E04H15/40;A63B63/08 主分类号 A63B9/00
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