PRODUIT GRAVE A GRAVURE CODEE, NOTAMMENT DOCUMENT, MOYEN POUR LA REALISATION D'UN TEL PRODUIT ET MOYEN DE LECTURE D'UN TEL PRODUIT.

摘要

a) Coded imprint product comprising visual data such as an image or signs, formed by imprints concealing a coding means, b) the product (1) is characterized in that, the imprints consist of etchings, at least some imprints (2, 3, 110) each include at least one specifically oriented face (109) providing a coding means concealed in the set of etching imprints.