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Application filed by Bohumil Ing Brabec, Jiri Barborka, Jaroslav Ing Bilek, Vaclav Cihlar, Stanislav Ing Kisel, Jiri Ing KostalfiledCriticalBohumil Ing Brabec
Priority to CS834545ApriorityCriticalpatent/CS232275B1/en
Publication of CS454583A1publicationCriticalpatent/CS454583A1/en
Publication of CS232275B1publicationCriticalpatent/CS232275B1/en