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Application filed by Stefan Ing Cervenan, Jozef GasparfiledCriticalStefan Ing Cervenan
Priority to CS888624ApriorityCriticalpatent/CS270879B1/en
Publication of CS862488A1publicationCriticalpatent/CS862488A1/en
Publication of CS270879B1publicationCriticalpatent/CS270879B1/en