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Priority to FR779174ApriorityCriticalpatent/FR1215313A/en
Application grantedgrantedCritical
Publication of FR1215313ApublicationCriticalpatent/FR1215313A/en
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F13/00—Illuminated signs; Luminous advertising
G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
FR779174A1958-11-141958-11-14
Process for obtaining fluorescent images or inscriptions on a support of transparent material, and products obtained
ExpiredFR1215313A
(en)