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Priority claimed from GB868609175Aexternal-prioritypatent/GB8609175D0/en
Priority claimed from GB868624698Aexternal-prioritypatent/GB8624698D0/en
Application filed by Ici America IncfiledCriticalIci America Inc
Priority claimed from EP87303221Aexternal-prioritypatent/EP0242167B1/de
Application grantedgrantedCritical
Publication of ATE69812T1publicationCriticalpatent/ATE69812T1/de