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Priority claimed from GB888800788Aexternal-prioritypatent/GB8800788D0/en
Priority claimed from GB888812896Aexternal-prioritypatent/GB8812896D0/en
Application filed by Ag Patents LtdfiledCriticalAg Patents Ltd
Priority claimed from EP89300312Aexternal-prioritypatent/EP0326253B1/en
Application grantedgrantedCritical
Publication of ATE95673T1publicationCriticalpatent/ATE95673T1/en