Patent classifications
A
HUMAN NECESSITIES
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A43
FOOTWEAR
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A43C
FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
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15/00
Non-skid devices or attachments
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A43C15/06
Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
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