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Publication of FR580571ApublicationCriticalpatent/FR580571A/fr
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
G09F11/02—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles
G09F11/025—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles the members being rotated simultaneously, each face of the member carrying a part of the sign
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FR580571D1924-04-231924-04-23Dispositif pour la formation et la disparition instantanées d'images sur un panneau
ExpiredFR580571A
(fr)