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Application filed by Bror GranqvistfiledCriticalBror Granqvist
Priority to FI860869ApriorityCriticalpatent/FI72565C/fi
Publication of FI860869A0publicationCriticalpatent/FI860869A0/fi
Publication of FI72565BpublicationCriticalpatent/FI72565B/fi
Application grantedgrantedCritical
Publication of FI72565CpublicationCriticalpatent/FI72565C/fi