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Application filed by Minnesota Mining & MfgfiledCriticalMinnesota Mining & Mfg
Priority claimed from HU9302457Aexternal-prioritypatent/HU222111B1/en
Publication of HU9701087D0publicationCriticalpatent/HU9701087D0/en
Pyrido[2,3d]-pyridazin-5-one and pyrido[2,3d]-pyridazin-5-thione derivatives, process for thein preparation and herbicidal compositions containing them