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Application filed by Toivo Juhani RuuskanenfiledCriticalToivo Juhani Ruuskanen
Priority to FI743717ApriorityCriticalpatent/FI51168C/fi
Priority to SE7514323Aprioritypatent/SE414918B/xx
Publication of FI51168BpublicationCriticalpatent/FI51168B/fi
Application grantedgrantedCritical
Publication of FI51168CpublicationCriticalpatent/FI51168C/fi