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Application filed by Frantisek Ing Mahel, Stanislav Mensik, Vaclav Ing Svec, Jaroslav Ing DvorakfiledCriticalFrantisek Ing Mahel
Priority to CS857601ApriorityCriticalpatent/CS255056B1/en
Publication of CS760185A1publicationCriticalpatent/CS760185A1/en
Publication of CS255056B1publicationCriticalpatent/CS255056B1/en