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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5/00
Footwear for sporting purposes
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A43B5/0427
characterised by type or construction details
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A43B5/0435
Adjustment of the boot to the foot
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A43B5/0443
to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices
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A43B5/0447
actuated by flexible means, e.g. cables, straps
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