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Priority claimed from FI893492Aexternal-prioritypatent/FI82739C/fi
Application filed by Sewatek Ab OyfiledCriticalSewatek Ab Oy
Publication of NO920229D0publicationCriticalpatent/NO920229D0/no
Publication of NO920229LpublicationCriticalpatent/NO920229L/no
Publication of NO177237BpublicationCriticalpatent/NO177237B/no
Publication of NO177237CpublicationCriticalpatent/NO177237C/no