IPC Subgroup
H04M 1/27467 Methods of retrieving data
Introduced: January 2020
Full Title
Substation equipment, e.g. for use by subscribers > Devices for calling a subscriber > Devices whereby a plurality of signals may be stored simultaneously > with provision for storing more than one subscriber number at a time > using static electronic memories, e.g. chips > Methods of retrieving data
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TELEPHONIC COMMUNICATION
3 direct subcodes
Child Classifications
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- H04M 1/2747 Scrolling on a display
- H04M 1/27475 using interactive graphical means or pictorial representations
- H04M 1/2748 by matching character strings