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Application filed by Politechnika Wroclawska, Aspa Zaklady Aparatury SpawalnfiledCriticalPolitechnika Wroclawska
Priority to PL29130191ApriorityCriticalpatent/PL165901B1/en
Publication of PL291301A1publicationCriticalpatent/PL291301A1/en
Publication of PL165901B1publicationCriticalpatent/PL165901B1/en