DIFF Subgroup
H04H 20/12 Arrangements for observation, testing or troubleshooting
Introduced: January 2008
Title
Titles differ between systems:
IPC: Arrangements for monitoring, testing or troubleshooting
CPC: Arrangements for observation, testing or troubleshooting
Full Title
Full titles differ between systems:
IPC:
Arrangements for broadcast or for distribution combined with broadcast > Arrangements for monitoring, testing or troubleshooting
CPC:
Arrangements for broadcast or for distribution combined with broadcast > Arrangements for observation, testing or troubleshooting
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2008.
Child Classifications
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