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)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with light sources activated by non-visible radiation
CPC: 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)
Full Title
Full titles differ between systems:
Illuminated signs; Luminous advertising > with light sources activated by non-visible radiation
Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G) > 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)
No child classifications to compare. This is a leaf node in both IPC and CPC.