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Priority claimed from SE8404002Aexternal-prioritypatent/SE452001B/en
Priority claimed from SE8502429Aexternal-prioritypatent/SE8502429L/en
Application filed by Hoeganaes Ab, Nordsec Security AbfiledCriticalHoeganaes Ab
Priority claimed from EP85850247Aexternal-prioritypatent/EP0171377B1/en
Application grantedgrantedCritical
Publication of ATE38656T1publicationCriticalpatent/ATE38656T1/en