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Priority to ES301885ApriorityCriticalpatent/ES301885A1/en
Publication of ES301885A1publicationCriticalpatent/ES301885A1/en
Procedure to improve the color sharpness in. prints, using any of the usual sheet printing methods, essentially characterized by the fact that the transparent or opaque sheet is provided with a print that gives characteristics of photographic transparency, for which points are made in the sheet of reference and then a face is printed with the appropriate phases, according to the colors to be deposited, by means of one or several engravings, and then the opposite face of the sheet is printed, with some engravings, similar to those of the previous face, but inverted , and using the same points of reference of the impression, so that in the sheet an impression is created on each face that correspond in figure and color, but inverted each other in position, so that a high depth color is obtained and sharpness, which when illuminated by the back acquires aspects of photographic transparency. (Machine-translation by Google Translate, not legally binding)
ES301885A1964-07-021964-07-02Procedure to improve color sharpness in prints (Machine-translation by Google Translate, not legally binding)
ExpiredES301885A1
(en)
Improvements in the process of obtaining paper sheets for copies, which allows to obtain several simultaneous copies without using paper carbon. (Machine-translation by Google Translate, not legally binding)