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Application filed by Frantisek Ruzicka, Jiri Ing Kloboucek, Josef Rypl, Karel Ing KastanekfiledCriticalFrantisek Ruzicka
Priority to CS888266ApriorityCriticalpatent/CS270399B1/en
Publication of CS826688A1publicationCriticalpatent/CS826688A1/en
Publication of CS270399B1publicationCriticalpatent/CS270399B1/en