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Application filed by Martti MaekinenfiledCriticalMartti Maekinen
Priority to FI810896ApriorityCriticalpatent/FI62932C/fi
Publication of FI810896LpublicationCriticalpatent/FI810896L/fi
Publication of FI62932BpublicationCriticalpatent/FI62932B/fi
Application grantedgrantedCritical
Publication of FI62932CpublicationCriticalpatent/FI62932C/fi