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Priority claimed from GB838313074Aexternal-prioritypatent/GB8313074D0/en
Application filed by James Menzies ThorntonfiledCriticalJames Menzies Thornton
Publication of NO850121LpublicationCriticalpatent/NO850121L/no
Publication of NO164521BpublicationCriticalpatent/NO164521B/no
Publication of NO164521CpublicationCriticalpatent/NO164521C/no