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Application filed by Ludek Ing Zamyslic, Karel Ing Hejtmanek, Miloslav Ing Csc Manke, Pscheidt Jiri, Sucharda ZbynekfiledCriticalLudek Ing Zamyslic
Priority to CS866574ApriorityCriticalpatent/CS256785B1/en
Publication of CS657486A1publicationCriticalpatent/CS657486A1/en
Publication of CS256785B1publicationCriticalpatent/CS256785B1/en