| 摘要 |
An illuminated sign for outdoor use is provided which is a frame enclosed by a transparent cover. Grooved tracks are utilized to receive and retain display plates which have light transmitting portions therein in the shape of letters or numbers. A central light source provides illumination and a translucent sheet diffuses the light so that a uniformly bright message appears when the light source is energized and the selected plates are abutted end to end in the tracks. The sign can have a display on more than one side and the display can be in more than one level.
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