发明授权
- 专利标题： Magnetically actuated visual display board
- 专利标题（中）： 磁力显示板
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申请号： US12583205申请日： 2009-08-17
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公开(公告)号： US08057238B2公开(公告)日： 2011-11-15
- 发明人: Xingkang Li , Qiang Li , Xingjian Li
- 申请人： Xingkang Li , Qiang Li , Xingjian Li
- 主分类号： B43L1/00
- IPC分类号： B43L1/00
摘要：
A magnetically actuated visual display board comprises a grid array of open ended chambers. Display configurations in each chamber utilize a magnetically responsive sliding element to move a display loop to alternate between two different display surfaces to create a desired visual array. A magnetic rod passing a chamber moves the sliding element within the chamber.
公开/授权文献
- US20110039251A1 Magnetically actuated visual display board 公开/授权日：2011-02-17
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