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Application filed by Juraj Ing Szabo, Lubomir Ing Drda, Pavel Ing HausnerfiledCriticalJuraj Ing Szabo
Priority to CS838910ApriorityCriticalpatent/CS253209B1/en
Publication of CS891083A1publicationCriticalpatent/CS891083A1/en
Publication of CS253209B1publicationCriticalpatent/CS253209B1/en