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Application filed by Varkonda Stefan, Hyblova Olga, Henselova Maria, Lacova Margita, Sidoova Eva, Konecny Vaclav, Jarmila Chovancova, Ferdinand BendafiledCriticalVarkonda Stefan
Priority to CS872979ApriorityCriticalpatent/CS263377B1/en
Publication of CS297987A1publicationCriticalpatent/CS297987A1/en
Publication of CS263377B1publicationCriticalpatent/CS263377B1/en