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3560491
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Information
Patent Grant
3560491
References
Source
Patent Number
3,560,491
Date Filed
Not available
Date Issued
Tuesday, February 2, 1971
53 years ago
CPC
C09B1/205 - Dyes with an unsaturated C on the N atom attached to the nucleus
C09B1/58 - with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals
C09B5/04 - Pyrazolanthrones
C09B5/14 - Benz-azabenzanthrones (anthrapyridones)
C09B5/16 - Benz-diazabenzanthrones
US Classifications
544 - Organic compounds
008 - Bleaching and dyeing
250 - Radiant energy
546 - Organic compounds
548 - Organic compounds
552 - Organic compounds
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