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Publication date
Priority claimed from GB38959/77Aexternal-prioritypatent/GB1585685A/en
Application filed by Deborah Services LtdfiledCriticalDeborah Services Ltd
Publication of NO783144LpublicationCriticalpatent/NO783144L/no
Publication of NO151428BpublicationCriticalpatent/NO151428B/no
Publication of NO151428CpublicationCriticalpatent/NO151428C/no