Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR1176608ApublicationCriticalpatent/FR1176608A/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
FR1176608D1957-06-071957-06-07Procédé de fabrication de panneaux lumineux
ExpiredFR1176608A
(fr)