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Priority claimed from FI873499Aexternal-prioritypatent/FI84775C/fi
Application filed by Valtion TeknillinenfiledCriticalValtion Teknillinen
Publication of NO900616LpublicationCriticalpatent/NO900616L/no
Publication of NO900616D0publicationCriticalpatent/NO900616D0/no
Publication of NO175236BpublicationCriticalpatent/NO175236B/no
Publication of NO175236CpublicationCriticalpatent/NO175236C/no