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Application filed by Paavo HautanenfiledCriticalPaavo Hautanen
Priority to FI893083ApriorityCriticalpatent/FI87276C/en
Publication of FI893083A0publicationCriticalpatent/FI893083A0/en
Publication of FI893083ApublicationCriticalpatent/FI893083A/en
Application grantedgrantedCritical
Publication of FI87276BpublicationCriticalpatent/FI87276B/en
Publication of FI87276CpublicationCriticalpatent/FI87276C/en