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Application filed by Ludek Ing Krobot, Jaroslav Vylicil, Milan Ing Dolezal, Jindrich SkalafiledCriticalLudek Ing Krobot
Priority to CS882637ApriorityCriticalpatent/CS266935B1/en
Publication of CS263788A1publicationCriticalpatent/CS263788A1/en
Publication of CS266935B1publicationCriticalpatent/CS266935B1/en