| 摘要 |
<p>A computer mouse has a casing (12), at least a central portion of which has a width greater than 25 millimetres and less than 45 millimetres, the casing upright sides (20) of which are designed to be held between the thumb and middle finger of a hand, and two mouse buttons (22, 23) one located forwardly of the other, both extending across the majority of the width of the casing and both designed to be operated by the index finger of a hand.</p> |
