(under subclass 1) Processes combined with a step of passing a nonreactive liquid through the fibrous material so as to remove undesired material therefrom.
(1) Note. Processes in which the washing is included only broadly, as by name only, are not included but are classified elsewhere on other bases.
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8, Bleaching and Dyeing: Fluid Treatment and Chemical Modification of Textiles and Fibers, particularly
