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 Wyzsza Szkola Inzynierska, Zaklady Koksownicze Im PowstanfiledCriticalWyzsza Szkola Inzynierska
Priority to PL27371288ApriorityCriticalpatent/PL154916B1/en
Publication of PL273712A1publicationCriticalpatent/PL273712A1/en
Publication of PL154916B1publicationCriticalpatent/PL154916B1/en