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Application filed by Josef Ing Suchy, Milan Sekanina, Petr Ing LiscinskyfiledCriticalJosef Ing Suchy
Priority to CS829374ApriorityCriticalpatent/CS231345B1/en
Publication of CS937482A1publicationCriticalpatent/CS937482A1/en
Publication of CS231345B1publicationCriticalpatent/CS231345B1/en