IPC Subgroup
G11B 33/1 Indicating arrangements; Warning arrangements
Introduced: January 1985
Last revised: January 2006
Full Title
Constructional parts, details or accessories not provided for in the other groups of this subclass > Indicating arrangements; Warning arrangements
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER