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Priority claimed from GB888807263Aexternal-prioritypatent/GB8807263D0/en
Priority claimed from GB888826652Aexternal-prioritypatent/GB8826652D0/en
Application filed by Bass PlcfiledCriticalBass Plc
Priority claimed from EP19890302918external-prioritypatent/EP0335598B1/de
Application grantedgrantedCritical
Publication of ATE92889T1publicationCriticalpatent/ATE92889T1/de