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 Polskie Gornictwo NaftowefiledCriticalPolskie Gornictwo Naftowe
Priority to PL27319888ApriorityCriticalpatent/PL158944B1/en
Publication of PL273198A1publicationCriticalpatent/PL273198A1/en
Publication of PL158944B1publicationCriticalpatent/PL158944B1/en