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Application filed by Mauri MikkonenfiledCriticalMauri Mikkonen
Priority to FI800819ApriorityCriticalpatent/FI60948C/fi
Publication of FI800819A7publicationCriticalpatent/FI800819A7/fi
Application grantedgrantedCritical
Publication of FI60948BpublicationCriticalpatent/FI60948B/fi
Publication of FI60948CpublicationCriticalpatent/FI60948C/fi