IPC Subgroup
H04L 17/04 with keyboard co-operating with code-bars
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code > Apparatus or circuits at the transmitting end > with keyboard co-operating with code-bars
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2 direct subcodes
Child Classifications
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- H04L 17/06 Contact operating means
- H04L 17/08 combined with perforating apparatus