| 摘要 |
A display unit has rolling panels entirely supported from the bottom and lacks a top frame. Each display panel is carried by wheels on a track which is adjustable to any front and back position with respect to the base of the stand. The top of each display panel carries a light-weight scissors whose sole function is to hold the panel vertical and which rolls in an upper track so that whatever position the bottom track is placed in, the upper scissors can accommodate to and hold the panel vertical.
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