| 摘要 |
<p>The writing and drawing utensil contains a lead composed of separate areas (12,14,16) of varying colours. The separate areas (12,14,16) containing varying colours extend axis-parallel relative to the mainly cylindrical lead. The cross section of the lead (10) is circular and cylindrical and the separate areas with the different colours form sectors of that circular surface. Shapes other than circular or cylindrical may also be used for the production of the lead.</p> |
