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Application filed by Jozef Dr Ing Tamchyna, Stefan DrzkafiledCriticalJozef Dr Ing Tamchyna
Priority to CS829764ApriorityCriticalpatent/CS232046B1/en
Publication of CS976482A1publicationCriticalpatent/CS976482A1/en
Publication of CS232046B1publicationCriticalpatent/CS232046B1/en