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Application filed by Burysek Frantisek, Frantisek Jaros, Vratislav Ing Zleor, Alois Jakoubek, Vaclav DivisfiledCriticalBurysek Frantisek
Priority to CS864707ApriorityCriticalpatent/CS256512B1/en
Publication of CS470786A1publicationCriticalpatent/CS470786A1/en
Publication of CS256512B1publicationCriticalpatent/CS256512B1/en