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Application filed by Wyzsza Szkola PedagogfiledCriticalWyzsza Szkola Pedagog
Priority to PL19567177ApriorityCriticalpatent/PL104681B1/en
Publication of PL195671A1publicationCriticalpatent/PL195671A1/en
Publication of PL104681B1publicationCriticalpatent/PL104681B1/en