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 Kopalnia Wegla Kamiennego HalefiledCriticalKopalnia Wegla Kamiennego Hale
Priority to PL20136677ApriorityCriticalpatent/PL110129B1/en
Publication of PL201366A1publicationCriticalpatent/PL201366A1/en
Publication of PL110129B1publicationCriticalpatent/PL110129B1/en