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Application filed by Jaakko VanhalafiledCriticalJaakko Vanhala
Priority to FI870750ApriorityCriticalpatent/FI870750A/fi
Publication of FI870750A0publicationCriticalpatent/FI870750A0/fi
Priority to NO880727Aprioritypatent/NO880727L/no
Publication of FI870750ApublicationCriticalpatent/FI870750A/fi