Patent classifications
A
HUMAN NECESSITIES
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A45
HAND OR TRAVELLING ARTICLES
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A45D
HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
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20/00
Hair drying devices; Accessories therefor
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A45D20/22
Helmets with hot air supply or ventilating means, e.g. electrically heated air current
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A45D20/34
Arrangements of the ventilating means
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