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 Bytomska Sp Weglowa Sa W BytomfiledCriticalBytomska Sp Weglowa Sa W Bytom
Priority to PL31464896ApriorityCriticalpatent/PL314648A1/en
Publication of PL314648A1publicationCriticalpatent/PL314648A1/en