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Priority claimed from GB888811053Aexternal-prioritypatent/GB8811053D0/en
Priority claimed from GB888811054Aexternal-prioritypatent/GB8811054D0/en
Application filed by Amersham Int PlcfiledCriticalAmersham Int Plc
Priority claimed from EP89304570Aexternal-prioritypatent/EP0341927B1/en
Application grantedgrantedCritical
Publication of ATE91548T1publicationCriticalpatent/ATE91548T1/en