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Application filed by Valtion TeknillinenfiledCriticalValtion Teknillinen
Priority to FI885639ApriorityCriticalpatent/FI85061C/fi
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Publication of FI885639ApublicationCriticalpatent/FI885639A/fi
Application grantedgrantedCritical
Publication of FI85061BpublicationCriticalpatent/FI85061B/fi
Publication of FI85061CpublicationCriticalpatent/FI85061C/fi