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Application filed by Petruj Jaroslav, Tomas Ing Sverak, Vesely Karel, Rysavy Drahomir, Frantisek Ing Novacek, Krivanek Josef, Poloucek Eduard, Foral Jiri, Kratochvil FrantisekfiledCriticalPetruj Jaroslav
Priority to CS885635ApriorityCriticalpatent/CS272402B1/en
Publication of CS563588A1publicationCriticalpatent/CS563588A1/en
Publication of CS272402B1publicationCriticalpatent/CS272402B1/en