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Home › Dye composition using a 2-hydroxynaphthalene, (acylamino)phenol or quinoline coupler in a fatty-substance-rich medium, dyeing process and device therefor

Dye composition using a 2-hydroxynaphthalene, (acylamino)phenol or quinoline coupler in a fatty-substance-rich medium, dyeing process and device therefor

US Patent 9028562 · Granted May 12, 2015

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