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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A47C19/02
Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
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A47C19/025
Direct mattress support frames, Cross-bars
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