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Application filed by Prochazka Vladimir, Zizka Jaroslav, Jiri Ing Csc EngelthalerfiledCriticalProchazka Vladimir
Priority to CS871279ApriorityCriticalpatent/CS265925B1/en
Publication of CS127987A1publicationCriticalpatent/CS127987A1/en
Publication of CS265925B1publicationCriticalpatent/CS265925B1/en