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Application filed by Gos Na Issl Inst Str KeramikifiledCriticalGos Na Issl Inst Str Keramiki
Priority to FI741719ApriorityCriticalpatent/FI52708C/fi
Publication of FI171974A7publicationCriticalpatent/FI171974A7/fi
Application grantedgrantedCritical
Publication of FI52708BpublicationCriticalpatent/FI52708B/fi
Publication of FI52708CpublicationCriticalpatent/FI52708C/fi