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Application filed by Markku Juhani VanhalafiledCriticalMarkku Juhani Vanhala
Priority to FI811954ApriorityCriticalpatent/FI67306C/fi
Publication of FI811954LpublicationCriticalpatent/FI811954L/fi
Application grantedgrantedCritical
Publication of FI67306BpublicationCriticalpatent/FI67306B/fi
Publication of FI67306CpublicationCriticalpatent/FI67306C/fi