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Application filed by Antti LehtiniemifiledCriticalAntti Lehtiniemi
Priority to FI13374ApriorityCriticalpatent/FI54960C/fi
Publication of FI740133A0publicationCriticalpatent/FI740133A0/fi
Publication of FI54960BpublicationCriticalpatent/FI54960B/fi
Application grantedgrantedCritical
Publication of FI54960CpublicationCriticalpatent/FI54960C/fi