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Priority claimed from GB858509882Aexternal-prioritypatent/GB8509882D0/en
Priority claimed from GB858525658Aexternal-prioritypatent/GB8525658D0/en
Application filed by Ici America IncfiledCriticalIci America Inc
Priority claimed from EP86302850Aexternal-prioritypatent/EP0199543B1/en
Application grantedgrantedCritical
Publication of ATE70053T1publicationCriticalpatent/ATE70053T1/en