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Priority claimed from GB838307748Aexternal-prioritypatent/GB8307748D0/en
Priority claimed from GB838315024Aexternal-prioritypatent/GB8315024D0/en
Application filed by Tillbrook A A CfiledCriticalTillbrook A A C
Priority claimed from EP19830304768external-prioritypatent/EP0104745B1/de
Application grantedgrantedCritical
Publication of ATE18630T1publicationCriticalpatent/ATE18630T1/de