IPC Definitions - January 01, 2012
H04L 17/00 - Definition
This main group covers:
Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements.
Attention is drawn to the following places, which may be of interest for search:
Keyboard switches in general | H01H 13/70, H03K 17/94 |
Coding in connection with keyboards or like devices, in general | H03M 11/00 |