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Priority claimed from GB898926631Aexternal-prioritypatent/GB8926631D0/en
Priority claimed from US07/652,855external-prioritypatent/US5320597A/en
Application filed by Becton Dickinson Co, Ici PlcfiledCriticalBecton Dickinson Co
Publication of ZA919312BpublicationCriticalpatent/ZA919312B/en