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Application filed by Josef Ing Polach, Stanislav Ing BatelkafiledCriticalJosef Ing Polach
Priority to CS8510052ApriorityCriticalpatent/CS253183B1/en
Publication of CS1005285A1publicationCriticalpatent/CS1005285A1/en
Publication of CS253183B1publicationCriticalpatent/CS253183B1/en