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1823943
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Patent Grant
1823943
References
Source
Patent Number
1,823,943
Date Filed
Not available
Date Issued
Tuesday, September 22, 1931
93 years ago
CPC
C09B29/16 - Naphthol-sulfonic acids
C09B29/00 - Monoazo dyes prepared by diazotising and coupling
C09B29/30 - Amino naphtholsulfonic acid
US Classifications
534 - Organic compounds
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