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Application filed by Frantisek Ziegler, Lumir KolarfiledCriticalFrantisek Ziegler
Priority to CS843800ApriorityCriticalpatent/CS242392B1/cs
Publication of CS380084A1publicationCriticalpatent/CS380084A1/cs
Publication of CS242392B1publicationCriticalpatent/CS242392B1/cs