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 PL25594585ApriorityCriticalpatent/PL145237B1/en
Publication of PL255945A1publicationCriticalpatent/PL255945A1/en
Publication of PL145237B1publicationCriticalpatent/PL145237B1/en