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Application filed by Frantisek Janko, Sola Ivan Ing, Jiri DedekfiledCriticalFrantisek Janko
Priority to CS833345ApriorityCriticalpatent/CS232503B1/en
Publication of CS334583A1publicationCriticalpatent/CS334583A1/en
Publication of CS232503B1publicationCriticalpatent/CS232503B1/en