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Application filed by Pavel Ing Peremsky, Zvonicek Josef, Cada Oldrich, Otakar Ing Csc Vondrasek, Karel Ing Mec, Bojda Bretislav, Vaclavek MiroslavfiledCriticalPavel Ing Peremsky
Priority to CS873082ApriorityCriticalpatent/CS262079B1/en
Publication of CS308287A1publicationCriticalpatent/CS308287A1/en
Publication of CS262079B1publicationCriticalpatent/CS262079B1/en