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Priority claimed from GB848420521Aexternal-prioritypatent/GB8420521D0/en
Application filed by Hsc Res Dev CorpfiledCriticalHsc Res Dev Corp
Priority claimed from EP19850305477external-prioritypatent/EP0171978B1/en
Application grantedgrantedCritical
Publication of ATE58137T1publicationCriticalpatent/ATE58137T1/en