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PCE
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DIFF Subgroup
A45D 20/42

Additional devices or measures, e.g. for noise damping, for musical entertainment

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 > Additional devices or measures, e.g. for noise damping, for musical entertainment

CPC:

Hair drying devices; Accessories therefor (A45D2/00 takes precedence) > Helmets with hot air supply or ventilating means, e.g. electrically heated air current > Additional devices or measures, e.g. for noise damping, for musical entertainment

No child classifications to compare. This is a leaf node in both IPC and CPC.