Animated Sign
Description:
Patent for a display apparatus to be implemented as animated advertising signs which successively display different images by controlling the timing of changes in the colors of light used to flood the front and to backlight the display surfaces. The images are created in such a way that certain elements created in certain colors become absorbed or are made invisible when illuminated by certain colors of light. An apparatus controls the cyclical changes of the colored lights used by the sign.
Date:
September 5, 1922
Creator:
Craig, Richard M.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department