发明名称 Portable and collapsible bookstand
摘要 A portable and collapsible bookstand apparatus includes a pair of main panels which is connected by a 180 degree foldable device; a pair of book-holding panels which is connected with the pair of main panels respectively by respective 90 degree foldable devices; a pair of bottom panels which is connected to the main panels respectively by respective 90 degree foldable devices; a plurality of height-control panels which is connected with respective bottom panels by respective 110 degree foldable devices, and are carved and inserted into the respective bottom panels when folded; and a plurality of notches in the main panels for the plurality of height-control panels to be inserted.
申请公布号 US8038116(B2) 申请公布日期 2011.10.18
申请号 US20090624009 申请日期 2009.11.23
申请人 LEE EUNYOUNG;KIM DONGYOUNG 发明人 LEE EUNYOUNG;KIM DONGYOUNG
分类号 A47B96/07 主分类号 A47B96/07
代理机构 代理人
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