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Priority claimed from GB838323686Aexternal-prioritypatent/GB8323686D0/en
Priority claimed from GB848410142Aexternal-prioritypatent/GB8410142D0/en
Application filed by Bass PlcfiledCriticalBass Plc
Priority claimed from EP84305854Aexternal-prioritypatent/EP0138341B1/de
Application grantedgrantedCritical
Publication of ATE38247T1publicationCriticalpatent/ATE38247T1/de