DIFF Subgroup
E01F 9/20 Use of light guides, e.g. fibre-optic devices
Introduced: January 2016
Full Title
Full titles differ between systems:
IPC:
Arrangement of road signs or traffic signals; Arrangements for enforcing caution > Use of light guides, e.g. fibre-optic devices
CPC:
Arrangement of road signs or traffic signals; Arrangements for enforcing caution (for obstructing or restricting traffic E01F13/00) > Use of light guides, e.g. fibre-optic devices
No child classifications to compare. This is a leaf node in both IPC and CPC.