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Application filed by Macaj Stefan, Ladislav Ing Jagersky, Jiri SafarcikfiledCriticalMacaj Stefan
Priority to CS878806ApriorityCriticalpatent/CS270165B1/en
Publication of CS880687A1publicationCriticalpatent/CS880687A1/en
Publication of CS270165B1publicationCriticalpatent/CS270165B1/en