Patent classifications
A
HUMAN NECESSITIES
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A44
HABERDASHERY; JEWELLERY
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A44C
PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
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5/00
Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
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A44C5/18
Fasteners for straps,; chains or the like
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A44C5/20
for open straps; , chains or the like
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A44C5/2057
Fasteners locked by sliding or rotating of the male element of the fastener; Turn-button fasteners
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A44C5/2061
combined with spring means
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