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Application filed by Milan Ing Hronec, Jozef Ing Mikulec, Kopernicky IvanfiledCriticalMilan Ing Hronec
Priority to CS869695ApriorityCriticalpatent/CS259577B1/en
Publication of CS969586A1publicationCriticalpatent/CS969586A1/en
Publication of CS259577B1publicationCriticalpatent/CS259577B1/en