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 DymifiledCriticalKopalnia Wegla Kamiennego Dymi
Priority to PL21048978ApriorityCriticalpatent/PL113114B2/en
Publication of PL210489A1publicationCriticalpatent/PL210489A1/en
Publication of PL113114B2publicationCriticalpatent/PL113114B2/en