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 Miechowice Kopalnia Wegla KamifiledCriticalMiechowice Kopalnia Wegla Kami
Priority to PL28815590ApriorityCriticalpatent/PL162789B1/en
Publication of PL288155A1publicationCriticalpatent/PL288155A1/en
Publication of PL162789B1publicationCriticalpatent/PL162789B1/en