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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1/00
Chairs adapted for special purposes
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A47C1/02
Reclining or easy chairs
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A47C1/031
having coupled; concurrently; adjustable supporting parts
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A47C1/032
the parts being movably-coupled seat and back-rest
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A47C1/03255
with a central column, e.g. rocking office chairs
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