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Application filed by Zdenek Ing Kurz, Lerhard Ing Bottger, Riha JirifiledCriticalZdenek Ing Kurz
Priority to CS876805ApriorityCriticalpatent/CS263703B1/en
Publication of CS680587A1publicationCriticalpatent/CS680587A1/en
Publication of CS263703B1publicationCriticalpatent/CS263703B1/en