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Priority claimed from GB37278/73Aexternal-prioritypatent/GB1483048A/en
Application filed by Hurson James KevinfiledCriticalHurson James Kevin
Publication of ATA357577ApublicationCriticalpatent/ATA357577A/de
Application grantedgrantedCritical
Publication of AT352251BpublicationCriticalpatent/AT352251B/de