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Application filed by Rikama Jaakko, Rikama Erkki, Rikama VeikkofiledCriticalRikama Jaakko
Priority to FI252568ApriorityCriticalpatent/FI44766C/fi
Publication of FI44766BpublicationCriticalpatent/FI44766B/fi
Application grantedgrantedCritical
Publication of FI44766CpublicationCriticalpatent/FI44766C/fi