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Application filed by Risto Olavi EskelinenfiledCriticalRisto Olavi Eskelinen
Priority to FI874367ApriorityCriticalpatent/FI82196C/fi
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Publication of FI874367ApublicationCriticalpatent/FI874367A/fi
Publication of FI82196BpublicationCriticalpatent/FI82196B/fi
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Publication of FI82196CpublicationCriticalpatent/FI82196C/fi