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Application filed by Arpad Ing Kiss, Julius Ing Ivan, Ladislav Ing SzoecsfiledCriticalArpad Ing Kiss
Priority to CS833819ApriorityCriticalpatent/CS238871B1/en
Publication of CS381983A1publicationCriticalpatent/CS381983A1/en
Publication of CS238871B1publicationCriticalpatent/CS238871B1/en