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Application filed by Wroclawskie Zaklady MaterialowfiledCriticalWroclawskie Zaklady Materialow
Priority to PL29499592ApriorityCriticalpatent/PL166710B1/en
Publication of PL294995A1publicationCriticalpatent/PL294995A1/en
Publication of PL166710B1publicationCriticalpatent/PL166710B1/en