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Mixtures of copper complexes of disazo compounds: 4,4'-(3,3'-dihydroxybiphenylene) tetrazo component and disulfonaphthol and 3-sulfo-6-(2'-chloro-4'-chloro or hydroxy-1,3,5-triazin-6'-ylamino)-naphth-1-ol coupling component

US Patent 4699626 · Granted Oct 13, 1987

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