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 JankfiledCriticalKopalnia Wegla Kamiennego Jank
Priority to PL19741077ApriorityCriticalpatent/PL103480B1/pl
Publication of PL197410A1publicationCriticalpatent/PL197410A1/pl
Publication of PL103480B1publicationCriticalpatent/PL103480B1/pl