Dyes for keratin fibers, the dyes containing n-benzyl-p-phenylenediamine derivatives and novel n-benzyl-p-phenylenediamine derivatives
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United States of America Patent
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Feb 10, 2004
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N/A
app pub date -
Mar 19, 2001
filing date -
Aug 31, 2000
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Abstract
for keratin fibers, and new N-benzyl-p-phenylenediamine derivatives.
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