| 摘要 |
PROBLEM TO BE SOLVED: To provide the mouse which is used for a personal computer, specially for a notebook type personal computer, etc. SOLUTION: A numeric key function is incorporated in the mouse 1 which is used to select a function or specify an input position on a personal computer, word processor, etc. in combination with a pointing device operation function, and numeric keys 3 are arranged on the top surface of the mouse 11.
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