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Patent classifications
A
HUMAN NECESSITIES
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A43
FOOTWEAR
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A43B
CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
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23/00
Uppers; Boot legs; Stiffeners; Other single parts of footwear
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A43B23/22
Supports for the shank or arch of the uppers
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A43B23/222
characterised by the attachment to the sole
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