IPC Subgroup
G11B 9/08 using electrostatic charge injection; Record carriers therefor
Introduced: September 1968
Last revised: January 2006
Full Title
Recording or reproducing using a method or means not covered by one of the main groups; Record carriers therefor > using electrostatic charge injection; Record carriers therefor
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER