Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instytut Metali NieżelaznychfiledCriticalInstytut Metali Nieżelaznych
Priority to PL388982ApriorityCriticalpatent/PL214591B1/pl
Publication of PL388982A1publicationCriticalpatent/PL388982A1/pl
Publication of PL214591B1publicationCriticalpatent/PL214591B1/pl