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Application filed by Wyzsza Szkola PedagogfiledCriticalWyzsza Szkola Pedagog
Priority to PL26886687ApriorityCriticalpatent/PL154119B1/en
Publication of PL268866A1publicationCriticalpatent/PL268866A1/en
Publication of PL154119B1publicationCriticalpatent/PL154119B1/en