IPC Subgroup
H04N 5/445 for displaying additional information
Introduced: January 1985
Last revised: January 2011
Full Title
Details of television systems > Receiver circuitry > for displaying additional information
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
1 direct subcode
Child Classifications
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- H04N 5/45 Picture in picture