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Application filed by Gnii Stroitelnoj KeramikifiledCriticalGnii Stroitelnoj Keramiki
Priority to FI741297ApriorityCriticalpatent/FI52675C/fi
Publication of FI129774A7publicationCriticalpatent/FI129774A7/fi
Application grantedgrantedCritical
Publication of FI52675BpublicationCriticalpatent/FI52675B/fi
Publication of FI52675CpublicationCriticalpatent/FI52675C/fi