(under subclass 35) Devices in which a fixed casing, usually carrying a light within it for use at night and having a window or opening, which may be normally covered by some sort of an interior shutter movable to uncover the light, or a normally-hidden sign or transparency may be moved to the opening or window.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45, for movable cover or screen indicators.
SEE OR SEARCH CLASS
40, Card, Picture, or Sign Exhibiting,
446+, for similar structure used for other purposes.
362, Illumination, 277+, for similar structure used for other purposes.