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Application filed by Ondrej Ing Csc Wein, Pavel Ing Csc Mitschka, Cermak Jan, Valentin V Ing Tovcigrecko, Zinovej P Prof Dr T N Sulman, Nella D Ing KovalevskajafiledCriticalOndrej Ing Csc Wein
Priority to CS837613ApriorityCriticalpatent/CS233544B1/en
Publication of CS761383A1publicationCriticalpatent/CS761383A1/en
Publication of CS233544B1publicationCriticalpatent/CS233544B1/en