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 ManifiledCriticalKopalnia Wegla Kamiennego Mani
Priority to PL20418678ApriorityCriticalpatent/PL108862B1/en
Publication of PL204186A1publicationCriticalpatent/PL204186A1/en
Publication of PL108862B1publicationCriticalpatent/PL108862B1/en