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Application filed by Dolnoslaskie Zaklady MagnetyczfiledCriticalDolnoslaskie Zaklady Magnetycz
Priority to PL19893077ApriorityCriticalpatent/PL112439B1/pl
Publication of PL198930A1publicationCriticalpatent/PL198930A1/pl
Publication of PL112439B1publicationCriticalpatent/PL112439B1/pl