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Application filed by Wyzsza Szkola PedagogfiledCriticalWyzsza Szkola Pedagog
Priority to PL24259783ApriorityCriticalpatent/PL140908B1/en
Publication of PL242597A1publicationCriticalpatent/PL242597A1/en
Publication of PL140908B1publicationCriticalpatent/PL140908B1/en