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Application filed by Karel Sommer, Stanislav Hladky, Jiri Zdrazil, Jaroslav Ing Karhanek, Pavel Spacil, Ivan Ing Bartosik, Franticsek Doc Ing Cs Habrovec, Jiri Ing SkarekfiledCriticalKarel Sommer
Priority to CS847401ApriorityCriticalpatent/CS252181B1/en
Publication of CS740184A1publicationCriticalpatent/CS740184A1/en
Publication of CS252181B1publicationCriticalpatent/CS252181B1/en