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G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs
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FR557641D1922-10-201922-10-20Appareil pour la production d'effets électrolumineux changeant
ExpiredFR557641A
(fr)