Patent ID: 8325469

Claim:
A user-interface device, which comprises: a plurality of indication elements for signalling of information and/or input of commands, each indication element having an individual identity and including a visual indication; a structure adapted for receiving the indication elements, the indication elements being in particular mounted in a relocatable way on the structure; wherein each indication element has a body including at least one upper face, provided with a corresponding visual indication, and one or more side faces and wherein the indication elements comprise identification means configured for co-operating with detection means of the device, for identification of the identity of the indication elements, characterized in that the identification means comprise a layer of electrically conductive material on a respective said side face, there being superimposed on the layer of electrically conductive material a layer of electrically insulating material; the detection means comprise one or more contact elements set up against a respective said side face; the layer of electrically insulating material has one or more windows for exposure of respective local portions of the underlying layer of electrically conductive material, each window being obtained substantially at a respective contact element.