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APP LUMINEUX ANNONCIATEURS ET
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APP LUMINEUX ANNONCIATEURS ET
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Publication of FR663763ApublicationCriticalpatent/FR663763A/fr
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F13/00—Illuminated signs; Luminous advertising
G09F13/04—Signs, boards or panels, illuminated from behind the insignia
G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Theoretical Computer Science
(AREA)
FR663763D1928-11-101928-11-10Dispositif permettant d'obtenir à volonté tous signes (lettres, chiffres, dessins,etc.) par projection lumineuse
ExpiredFR663763A
(fr)