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Priority claimed from GB858525658Aexternal-prioritypatent/GB8525658D0/en
Priority claimed from GB868609176Aexternal-prioritypatent/GB8609176D0/en
Application filed by Ici America IncfiledCriticalIci America Inc
Priority claimed from EP86308054Aexternal-prioritypatent/EP0220066B1/en
Application grantedgrantedCritical
Publication of ATE74127T1publicationCriticalpatent/ATE74127T1/en