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Drug, Bio-affecting And Body Treating Compositions Patents
Designated Organic Active Ingredient Containing (doai)
Designated Organic Active Ingredient Containing (doai)
Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., o,s,se or te) or nitrogen as the only ring hetero atoms doai
Hetero ring is six-membered consisting of two nitrogens and four carbon atoms (e.g., pyridazines, etc.)
There are no patents to show for this class.