| 摘要 |
<p>A push-button assembly (10) comprises a push-button (12) having a side wall outer surface located adjacent to a side wall inner surface of a surrounding body (14), characterised in that at least one of said side wall surfaces is recessed (22; 22a, 22c; 22b, 22d) thereby reducing the contact area of the opposed surface areas likely to be adversely affected by stickiness.</p> |
