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Application filed by Stanisław Gwardiak, Wojciech GwardiakfiledCriticalStanisław Gwardiak
Priority to PL365431ApriorityCriticalpatent/PL207482B1/pl
Publication of PL365431A1publicationCriticalpatent/PL365431A1/pl
Publication of PL207482B1publicationCriticalpatent/PL207482B1/pl