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 Wyzsza Szkola PedagogfiledCriticalWyzsza Szkola Pedagog
Priority to PL19157676ApriorityCriticalpatent/PL108870B1/pl
Publication of PL191576A1publicationCriticalpatent/PL191576A1/pl
Publication of PL108870B1publicationCriticalpatent/PL108870B1/pl