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Application filed by Teppo Sihvo, Lauri SihvofiledCriticalTeppo Sihvo
Priority to FI853772ApriorityCriticalpatent/FI81529C/fi
Publication of FI853772A0publicationCriticalpatent/FI853772A0/fi
Publication of FI853772LpublicationCriticalpatent/FI853772L/fi
Publication of FI81529BpublicationCriticalpatent/FI81529B/fi
Application grantedgrantedCritical
Publication of FI81529CpublicationCriticalpatent/FI81529C/fi