Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G)

Child Classifications

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• G09F 13/005
• G09F 13/02 Signs, boards, or panels, illuminated by artificial light sources positioned in front of the insignia
• G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• G09F 13/16 Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
• G09F 13/18 Edge-illuminated signs
• G09F 13/20 with luminescent surfaces or parts (luminescent compositions C09K11/00; light sources using luminescence F21K2/00)
• G09F 13/24 using tubes or the like filled with liquid, e.g. bubbling liquid
• G09F 13/26 Signs formed by electric discharge tubes (by selective lighting G09F9/00)
• G09F 13/28 Signs formed by filament-type lamp (by selective lighting G09F9/00)
• G09F 13/30 with moving light sources, e.g. rotating luminous tubes
• G09F 13/32 with moving optical part of parts, e.g. mirrors
• G09F 13/34 with light sources co-operating with movable members, e.g. with shutters to cover or uncover the light source (apparatus wherein advertising or display material is moved in a continuous or intermittent succession G09F11/00; construction or details of lighting devices F21V11/00)
• G09F 13/42 with light sources activated by non-visible radiation (cathode ray image or pattern display tubes H01J31/10; lamps with luminescent screens excited by cathode rays H01J63/06)
• G09F 13/44 with gas as lighting source
• G09F 13/46 Advertising by fireworks