DIFF Subgroup
G09F 13/24 using tubes or the like filled with liquid, e.g. bubbling liquid
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Illuminated signs; Luminous advertising > using tubes or the like filled with liquid, e.g. bubbling liquid
CPC:
Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G) > using tubes or the like filled with liquid, e.g. bubbling liquid
No child classifications to compare. This is a leaf node in both IPC and CPC.