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Application filed by Mockovciak Pavol, Ladislav Gasparik, Pavel Ing LetkofiledCriticalMockovciak Pavol
Priority to CS872593ApriorityCriticalpatent/CS264962B1/cs
Publication of CS259387A1publicationCriticalpatent/CS259387A1/cs
Publication of CS264962B1publicationCriticalpatent/CS264962B1/cs