Description
Class D06L : BLEACHING, e.g. OPTICAL BLEACHING, DRY-CLEANING, OR WASHING FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
Subclass 1/18: Dry-cleaning or washing fibres, threads, yarns, fabrics, feathers, or made-up fibrous goods using aqueous baths Working under pressure in closed vessels