IPC Subgroup
H04N 5/83 on disks or drums
Introduced: January 1980
Last revised: January 2006
Full Title
Details of television systems > Television signal recording > using electrostatic recording > using deformable thermoplastic recording medium > on disks or drums
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION