| 摘要 |
<p>The device has a support (1) that is provided with recesses (2) in which rods (3) are placed. The rods are maintained and guided in grids (4) displacing them in the direction of center of an upper and circular part (5) of the rods articulated at a rounded base (6) to obtain dots to form Braille characters. The rods are thicker in their lower part and are retained by the grids.</p> |
