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Application filed by Ryszard Szafraniec, Ryszard GorzkiewiczfiledCriticalRyszard Szafraniec
Priority to PL25755186ApriorityCriticalpatent/PL142799B2/en
Publication of PL257551A2publicationCriticalpatent/PL257551A2/en
Publication of PL142799B2publicationCriticalpatent/PL142799B2/en