IPC Subgroup
H04M 1/23 Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
Introduced: September 1968
Last revised: January 2006
Full Title
Substation equipment, e.g. for use by subscribers > Constructional features of telephone sets > Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TELEPHONIC COMMUNICATION