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Application filed by Wyzsza Szkola PedagogfiledCriticalWyzsza Szkola Pedagog
Priority to PL19717877ApriorityCriticalpatent/PL109219B1/pl
Publication of PL197178A1publicationCriticalpatent/PL197178A1/pl
Publication of PL109219B1publicationCriticalpatent/PL109219B1/pl