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Application filed by Sedivec Jan, Petr Prof Rndr Drsc KratochvilfiledCriticalSedivec Jan
Priority to CS87664ApriorityCriticalpatent/CS259971B1/en
Publication of CS66487A1publicationCriticalpatent/CS66487A1/en
Publication of CS259971B1publicationCriticalpatent/CS259971B1/en