BLEACHING, e.g. OPTICAL BLEACHING, DRY-CLEANING, OR WASHING FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS (see Fulltext... Hierarchy... Expanded...D06B, Fulltext... Hierarchy... Expanded...D06C, Fulltext... Hierarchy... Expanded...D06F for mechanical matters treatment of fibres or filaments of glass, mineral wool, or slag wool Fulltext... Hierarchy... Expanded...C03; chemical treatment of fibrous material to obtain fibres for spinning Fulltext... Hierarchy... Expanded...D01; bleaching paper pulp or cotton linters Fulltext... Hierarchy... Expanded...D21) |