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Application filed by Jakko Viitamaeki, Jaakko ViitamaekifiledCriticalJakko Viitamaeki
Priority to FI842604ApriorityCriticalpatent/FI74186C/fi
Publication of FI842604A0publicationCriticalpatent/FI842604A0/fi
Publication of FI842604ApublicationCriticalpatent/FI842604A/fi
Application grantedgrantedCritical
Publication of FI74186BpublicationCriticalpatent/FI74186B/fi
Publication of FI74186CpublicationCriticalpatent/FI74186C/fi