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Application filed by Jaroslav Bartonek, Eva Ing Galvankova, Ervin ZamarskifiledCriticalJaroslav Bartonek
Priority to CS843105ApriorityCriticalpatent/CS251625B1/en
Publication of CS310584A1publicationCriticalpatent/CS310584A1/en
Publication of CS251625B1publicationCriticalpatent/CS251625B1/en