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Publication of FR786202ApublicationCriticalpatent/FR786202A/fr
B44F1/00—Designs or pictures characterised by special or unusual light effects
B44F1/06—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings
FR786202D1935-02-271935-02-27Procédé d'imprimerie pour cadrans transparents
ExpiredFR786202A
(fr)