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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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7/00
Parts, details, or accessories of chairs or stools
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A47C7/50
Supports for the feet or the legs
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A47C7/506
of adjustable type
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A47C7/5062
rectilinearly
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A47C7/5064
in vertical direction
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