Patent classifications
A
HUMAN NECESSITIES
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A42
HEADWEAR
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A42B
HATS; HEAD COVERINGS
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A42B1/018
with means for protecting the eyes, ears or nape, e.g. sun or rain shields; with air-inflated pads or removable linings
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A42B1/0186
with means for protecting the ears or nape
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A42B1/0188
Protection for the ears, e.g. removable ear muffs
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