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Application filed by Jiri Klecka, Frantisek ZavadilfiledCriticalJiri Klecka
Priority to CS849582ApriorityCriticalpatent/CS243867B1/cs
Publication of CS958284A1publicationCriticalpatent/CS958284A1/cs
Publication of CS243867B1publicationCriticalpatent/CS243867B1/cs