DIFF Subgroup
H04L 15/28 Code reproducing apparatus
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
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
CPC:
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
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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