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Home › Combinations of two para-phenylenediamine oxidation bases and a meta-phenylenediamine coupler for the oxidation dyeing of keratinous fibers

Combinations of two para-phenylenediamine oxidation bases and a meta-phenylenediamine coupler for the oxidation dyeing of keratinous fibers

US Patent 5690696 · Granted Nov 25, 1997

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