| 摘要 |
A readerboard signage system which allows signage characters to be easily changed within a pair of parallel extending tracks. In the illustrative embodiments, the system includes an optically transparent character protective viewing panel that is placed over the sequence of characters held in place within the pair of parallel extending tracks. The panel includes a lip portion which cooperates with the lower character holding track, to prevent rain, ice, and snow from entering the tracks, while the viewing panel itself protects the underlying characters from such natural elements and vandalism, without detracting from the utility and aesthetic appearance of the system.
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