CPC Subgroup
G09F 13/22 electroluminescent (electroluminescent light sources per se H05B33/00)
Full Title
Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G) > with luminescent surfaces or parts (luminescent compositions C09K11/00; light sources using luminescence F21K2/00) > electroluminescent (electroluminescent light sources per se H05B33/00)
3 direct subcodes
Child Classifications
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