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Application filed by Juraj Doc Ing Csc Oetter, Jozef Ing Csc FedorfiledCriticalJuraj Doc Ing Csc Oetter
Priority to CS832557ApriorityCriticalpatent/CS231283B1/en
Publication of CS255783A1publicationCriticalpatent/CS255783A1/en
Publication of CS231283B1publicationCriticalpatent/CS231283B1/en