Procedure and device for impression of engraving in sweet in multiple colors in each of the elements of a selection on supports, such as fiduciary paper (Machine-translation by Google Translate, not legally binding)

摘要

Procedure for the impression of sweet engraving in multiple colors of each one of the elements of a selection on supports such as fiduciary paper, characterized by means that allow to realize the synthesis of a polychrome selection in which each element, engraved in sweet, receives in addition to the desired primary color, n. Colors derived or altered, the primary and derivative colors being separately visible in the engraving intervals, which considerably increases the difficulty of unauthorized reproduction of the fiduciary document. (Machine-translation by Google Translate, not legally binding)