Braille writing board for producing document with stylus

摘要

A perforated matrix enables indentations to be pressed into the document (4) by means of a base plate prepared with troughs with the corresponding arrangement of troughs (5). A matrix (3) combining the properties of the conventional perforated matrix and the base plate has Braille signs in the intermediate spaces, and in which no points can be made. The document can be written on both sides.