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 Zabrzanskie Gwarectwo WeglowefiledCriticalZabrzanskie Gwarectwo Weglowe
Priority to PL25247885ApriorityCriticalpatent/PL147357B1/en
Publication of PL252478A1publicationCriticalpatent/PL252478A1/en
Publication of PL147357B1publicationCriticalpatent/PL147357B1/en