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Application filed by Jiri Ing Gajdosik, Alois Charvat, Jiri Hruby, Rudolf Brtnik, Jaroslav Raiser, Pavel PachernikfiledCriticalJiri Ing Gajdosik
Priority to CS848137ApriorityCriticalpatent/CS252070B1/en
Publication of CS813784A1publicationCriticalpatent/CS813784A1/en
Publication of CS252070B1publicationCriticalpatent/CS252070B1/en