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Application filed by Teuvo Riekkinen, Toimi HakkarainenfiledCriticalTeuvo Riekkinen
Priority to FI910133ApriorityCriticalpatent/FI91209C/fi
Publication of FI910133A0publicationCriticalpatent/FI910133A0/fi
Publication of FI910133ApublicationCriticalpatent/FI910133A/fi
Application grantedgrantedCritical
Publication of FI91209BpublicationCriticalpatent/FI91209B/fi
Publication of FI91209CpublicationCriticalpatent/FI91209C/fi