| 摘要 |
A key mode timer with a displaying window and an improved plate structure. The plate structure includes the setting keys, an upper plate and an inner plate. The upper plate has a displaying window. The upper plate is rotated with the setting keys to set the time and the inner plate is fixed. When the displaying window rotates with the upper plate, the numbers and the letters printed on inner plate are shown through the window to enable the user to easily read the time information shown on the timer.
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