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Priority claimed from GB838307462Aexternal-prioritypatent/GB8307462D0/en
Application filed by Emhart IndfiledCriticalEmhart Ind
Priority claimed from EP19850107303external-prioritypatent/EP0167871B1/en
Application grantedgrantedCritical
Publication of ATE48583T1publicationCriticalpatent/ATE48583T1/en