发明授权
US5881482A Display having selectable simulated illuminating means 失效
显示器具有可选择的模拟照明装置

Display having selectable simulated illuminating means
摘要:
A display device, including: a front panel having defined therethrough at least two apertures; and an index panel disposed behind the front panel and moveable between at least first and second positions to vary what can be viewed through the at least two apertures by an observer looking at the front panel.
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