Process for the trichromatic dyeing of leather
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United States of America Patent
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-
Jan 24, 1989
Grant Date -
N/A
app pub date -
Jan 12, 1987
filing date -
Jan 21, 1986
priority date (Note) -
Expired
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Abstract
A mixture comprising a yellow dye and a red dye each of formula I and a grey dye of formula II is employed in accordance with claim 1 for the trichromatic dyeing of leather.
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