IPC Subgroup
H04L 15/3 Writing recorders
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code > Apparatus or circuits at the receiving end > Code reproducing apparatus > Writing recorders
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION