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Application filed by Stejskal Alois, Didek Stanislav, Miroslav Ing Stepanek, Lojka Jaroslav, Jan Hrdina, Frantisek Ferkl, Jaroslav Slingr, Borovcova ZelmirafiledCriticalStejskal Alois
Priority to CS867408ApriorityCriticalpatent/CS268070B1/en
Publication of CS740886A1publicationCriticalpatent/CS740886A1/en
Publication of CS268070B1publicationCriticalpatent/CS268070B1/en