IPC Subgroup
G11B 25/04 using flat record carriers, e.g. disc, card
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing > using flat record carriers, e.g. disc, card
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER