DIFF Main Group
H04L 23/00 Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
Introduced: September 1968
Title
Titles differ between systems:
IPC: Apparatus or local circuits for telegraphic systems other than those covered by groups
CPC: Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
Full Title
Full titles differ between systems:
IPC:
Apparatus or local circuits for telegraphic systems other than those covered by groups
CPC:
Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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