IPC Subgroup
G09F 13/24 using tubes or the like filled with liquid, e.g. bubbling liquid
Introduced: September 1968
Last revised: January 2006
Full Title
Illuminated signs; Luminous advertising > using tubes or the like filled with liquid, e.g. bubbling liquid
Classification Context
- Section:
- PHYSICS
- Class:
- EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- Subclass:
- DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS