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Application filed by Karel Barta, Kosla Adolf, Ryska StanislavfiledCriticalKarel Barta
Priority to CS841801ApriorityCriticalpatent/CS239897B1/en
Publication of CS180184A1publicationCriticalpatent/CS180184A1/en
Publication of CS239897B1publicationCriticalpatent/CS239897B1/en