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Priority claimed from FI891439Aexternal-prioritypatent/FI85195C/fi
Application filed by Valtion TeknillinenfiledCriticalValtion Teknillinen
Priority to FI895830ApriorityCriticalpatent/FI83708C/fi
Publication of FI895830A0publicationCriticalpatent/FI895830A0/fi
Publication of FI83708BpublicationCriticalpatent/FI83708B/fi
Application grantedgrantedCritical
Publication of FI83708CpublicationCriticalpatent/FI83708C/fi