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Priority claimed from GB868617319Aexternal-prioritypatent/GB8617319D0/en
Priority claimed from GB868620525Aexternal-prioritypatent/GB8620525D0/en
Application filed by Stephen Robert Andre ApplefordfiledCriticalStephen Robert Andre Appleford
Priority claimed from EP19870306236external-prioritypatent/EP0253638B1/de
Application grantedgrantedCritical
Publication of ATE62524T1publicationCriticalpatent/ATE62524T1/de