Patent classifications
A
HUMAN NECESSITIES
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A47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
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A47C
CHAIRS; SOFAS; BEDS
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27/00
Spring, stuffed or fluid mattresses; or cushions; specially adapted for chairs, beds or sofas
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A47C27/14
with foamed material inlays
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A47C27/142
with projections, depressions or cavities
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A47C27/146
on the outside surface of the mattress or cushion
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