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Application filed by Jiri Sonnek, Karel Koudelka, Jindrich Sonek, Jiri Zurek, Emil SchoenerfiledCriticalJiri Sonnek
Priority to CS758874ApriorityCriticalpatent/CS194903B1/cs
Priority to CS782933Aprioritypatent/CS202236B1/cs
Publication of CS194903B1publicationCriticalpatent/CS194903B1/cs