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Application filed by Michal Ing Jurkovic, Frantisek Ing Janis, Milan Ing Zajac, Roman Ing MikulovskyfiledCriticalMichal Ing Jurkovic
Priority to CS84497ApriorityCriticalpatent/CS238527B1/en
Publication of CS49784A1publicationCriticalpatent/CS49784A1/en
Publication of CS238527B1publicationCriticalpatent/CS238527B1/en