DIFF Subgroup
A42C 5/04 Ventilating arrangements for head coverings (for helmets A42B3/28)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Ventilating arrangements for head coverings
CPC: Ventilating arrangements for head coverings (for helmets A42B3/28)
Full Title
Full titles differ between systems:
IPC:
Fittings or trimmings for hats, e.g. hat-bands > Ventilating arrangements for head coverings
CPC:
Fittings or trimmings for hats, e.g. hat-bands > Ventilating arrangements for head coverings (for helmets A42B3/28)
No child classifications to compare. This is a leaf node in both IPC and CPC.