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Priority claimed from GB838302974Aexternal-prioritypatent/GB8302974D0/en
Application filed by Morton Robert Dg LtdfiledCriticalMorton Robert Dg Ltd
Priority claimed from EP83307305Aexternal-prioritypatent/EP0113191B1/de
Application grantedgrantedCritical
Publication of ATE42336T1publicationCriticalpatent/ATE42336T1/de