| 摘要 |
The invention relates to electronic devises and may be used in remote-control boards, phones, calculators and pocket computers A device comprises numerical keys arranged around circle with distance 45° from 0 to 9 and leading out of circle 5 and 7 keys, arranging the said keys opposite to 4 and 8 keys under 45°. The technical result is simplification of blind keyboard printing, reducing time of printing and design simplification. |
