| 摘要 |
PURPOSE: A telephone number key structure for easily inputting a character is provided to conveniently perform the operation of both hands by arranging vowels and consonants at one side and the other side. CONSTITUTION: Consonant keys are arranged at two columns of one side of a telephone number key, and vowel keys are arranged at a column of the other side of the telephone number key. A Hangul/English/specific key is arranged at a lower side of one side of the telephone number key.
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