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Application filed by Martti KontinenfiledCriticalMartti Kontinen
Priority to FI761561ApriorityCriticalpatent/FI54685C/fi
Publication of FI761561A7publicationCriticalpatent/FI761561A7/fi
Application grantedgrantedCritical
Publication of FI54685BpublicationCriticalpatent/FI54685B/fi
Publication of FI54685CpublicationCriticalpatent/FI54685C/fi