Patent classifications
A
HUMAN NECESSITIES
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A43
FOOTWEAR
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A43D
MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
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100/00
Setting or removing eyelets, buttons, lacing-hooks, or elastic gussets in shoes
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A43D100/02
Punching and eyelet-setting machines or tools
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A43D100/04
inserting invisible eyelets
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