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Application filed by Henryk GrzechnikfiledCriticalHenryk Grzechnik
Priority to PL24848684ApriorityCriticalpatent/PL147916B1/en
Publication of PL248486A1publicationCriticalpatent/PL248486A1/en
Publication of PL147916B1publicationCriticalpatent/PL147916B1/en