| 摘要 |
<p>The present invention provides a magnetic compass including a magnet (100) as a shaft; a device (200) to draw a circle with a pencil; and a device (300) to draw a circle with lead. The present invention can draw a circle while obtaining safety by having the central shaft formed of the magnet and a plate to fix a central shaft. Also, the present invention enhances inconvenience caused by transforming an existing compass whenever changing writing materials, such as a mechanical pencil, a pencil, and others; thereby simultaneously using the mechanical pencil and the pencil without separately using the mechanical pencil and the pencil depending on the usage.</p> |
