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Application filed by Boleslaw Zaklady Gorniczo HutnfiledCriticalBoleslaw Zaklady Gorniczo Hutn
Priority to PL29380292ApriorityCriticalpatent/PL166865B1/en
Publication of PL293802A1publicationCriticalpatent/PL293802A1/en
Publication of PL166865B1publicationCriticalpatent/PL166865B1/en