CPC Subgroup
H04L 15/28 Code reproducing apparatus
Full Title
Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H21/86) > Apparatus or circuits at the receiving end > Code reproducing apparatus
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04L 15/30 Writing recorders
- H04L 15/32 Perforating recorders