U.S. federal trademark · Serial No. 71454857 · Reg. No. 0399147
Chemical Compounds Used in the Dyeing and Bleaching of Leather and in the Tanning of Hides; Also as a Dispersing Agent for Pigments and for Precipitating Glue in Paper Manufacture; and Also Used in the Textile and Printing Industries for the Precipitation of Color Lakes with Basic Dyes
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