| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable telephone constituted in such a way that the time can be confirmed on a display part in the portable telephone during a telephone call, that the display of the time of made to disappear by pressing a time display key during the display of the time, and that the time display is executed when the time is not displayed. SOLUTION: The portable telephone is constituted in such a way that the time (17:09) can be displayed on the display part 1a, that the display of the time is made to disappear by pressing the time display key during the display of the time, and that the time display is executed when the time is not displayed.
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