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Application filed by Raimo Juhani SaarifiledCriticalRaimo Juhani Saari
Priority to FI1406/74ApriorityCriticalpatent/FI53171C/fi
Publication of FI140674A7publicationCriticalpatent/FI140674A7/fi
Publication of FI53171BpublicationCriticalpatent/FI53171B/fi
Application grantedgrantedCritical
Publication of FI53171CpublicationCriticalpatent/FI53171C/fi