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Priority claimed from GB848407405Aexternal-prioritypatent/GB8407405D0/en
Application filed by Roy William BucklandfiledCriticalRoy William Buckland
Priority claimed from EP85301962Aexternal-prioritypatent/EP0157547B2/de
Application grantedgrantedCritical
Publication of ATE63835T1publicationCriticalpatent/ATE63835T1/de