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Priority claimed from GB888827589Aexternal-prioritypatent/GB8827589D0/en
Priority claimed from GB898923354Aexternal-prioritypatent/GB8923354D0/en
Application filed by Ici Plc, Atlas Europol SpafiledCriticalIci Plc
Priority claimed from EP89312087Aexternal-prioritypatent/EP0371680B1/de
Application grantedgrantedCritical
Publication of ATE98967T1publicationCriticalpatent/ATE98967T1/de