IPC Main Group
G09F 27/00 Combined visual and audible advertising or displaying, e.g. for public address
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- Subclass:
- DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS