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Publication of FR524882ApublicationCriticalpatent/FR524882A/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
G09F13/14—Arrangements of reflectors therein
Landscapes
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Engineering & Computer Science
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FR524882A1917-03-051917-03-05Dispositif d'éclairage par transparence à grand rendement, à répartition uniforme et à intensité réglable
ExpiredFR524882A
(fr)