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Application filed by Markku VanhalafiledCriticalMarkku Vanhala
Priority to FI981986ApriorityCriticalpatent/FI109083B/fi
Publication of FI981986A0publicationCriticalpatent/FI981986A0/fi
Publication of FI981986ApublicationCriticalpatent/FI981986A/fi
Application grantedgrantedCritical
Publication of FI109083BpublicationCriticalpatent/FI109083B/fi