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Priority claimed from GB878724800Aexternal-prioritypatent/GB8724800D0/en
Priority claimed from GB878724799Aexternal-prioritypatent/GB8724799D0/en
Application filed by Univ ManchesterfiledCriticalUniv Manchester
Priority claimed from EP88309938Aexternal-prioritypatent/EP0314405B1/en
Application grantedgrantedCritical
Publication of ATE73766T1publicationCriticalpatent/ATE73766T1/en