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Priority claimed from FI801556Aexternal-prioritypatent/FI60681C/en
Application filed by Jari MattilafiledCriticalJari Mattila
Publication of NO820053LpublicationCriticalpatent/NO820053L/en
Publication of NO155688BpublicationCriticalpatent/NO155688B/en
Publication of NO155688CpublicationCriticalpatent/NO155688C/en