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2252723
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Information
Patent Grant
2252723
References
Source
Patent Number
2,252,723
Date Filed
Not available
Date Issued
Tuesday, August 19, 1941
82 years ago
CPC
C07D233/12 - with substituted hydrocarbon radicals attached to ring nitrogen atoms
C07D233/20 - with substituted hydrocarbon radicals, directly attached to ring carbon atoms
US Classifications
548 - Organic compounds
544 - Organic compounds
546 - Organic compounds
564 - Organic compounds
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