DIFF Subgroup
A45D 20/40 for use of infrared rays
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Hair drying devices; Accessories therefor > Helmets with hot air supply or ventilating means, e.g. electrically heated air current > Arrangement of the electric heating means > for use of infrared rays
CPC:
Hair drying devices; Accessories therefor (A45D2/00 takes precedence) > Helmets with hot air supply or ventilating means, e.g. electrically heated air current > Arrangement of the electric heating means > for use of infrared rays
No child classifications to compare. This is a leaf node in both IPC and CPC.