Device for automatic reading of a plurality of codes by means of a single key code

Device for the automatic reading of a plurality of codes by means of a key code comprising:

• a plurality of inserts having at least one visible face suitable for carrying distinctive elements, said inserts being combined in a movable manner, so that the distinctive elements applied to at least one visible face of every insert form a plurality of strings,
• means for positioning said strings alongside each other in parallel mode so as to align the distinctive elements of several strings according to a direction that is basically transversal with respect to the direction of the strings, the first distinctive elements of each string forming the key code, the second distinctive elements of each string forming a code to be remembered, and so on wherein the Nth distinctive element of each string forms the Nth code to be remembered, and
• means for varying the relative position between at least two strings from the initial configuration, wherein when the key code is formed it is possible to read the other codes on the strings in transversal direction, to a position in which the distinctive elements of at least one string appear misaligned compared to the distinctive elements of the other strings.