Improvements introduced in the three-color printing procedure (Machine-translation by Google Translate, not legally binding)

Improvements introduced in the printing process in three colors, characterized in that they consist, on the one hand, of tweezers or equivalent organs that carry pins of identical and equally spaced section, arranged on the carrier chassis of the film and, on the other hand, on perforations corresponding to the pins mentioned above, and made at the same distance as the latter on at least one of the edges of the negative films, of the masks and of the wefts, so that a single registration means is uniformly applied to all the clichºs, chassis and masks used in this type of printing. (Machine-translation by Google Translate, not legally binding)