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 Inst Metali NiezelaznychfiledCriticalInst Metali Niezelaznych
Priority to PL19803777ApriorityCriticalpatent/PL111591B1/pl
Publication of PL198037A1publicationCriticalpatent/PL198037A1/pl
Publication of PL111591B1publicationCriticalpatent/PL111591B1/pl