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Application filed by Broz Vaclav, Vladimir Kremlicka, Bohumil Ing Csc Kozelouh, Oldrich Kubat, Milos Opocensky, Pavel BalinekfiledCriticalBroz Vaclav
Priority to CS8712ApriorityCriticalpatent/CS260604B1/cs
Publication of CS1287A1publicationCriticalpatent/CS1287A1/cs
Publication of CS260604B1publicationCriticalpatent/CS260604B1/cs