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Application filed by Jozef Ing Sloboda, Jan Strba, Vladimir Benuska, Milan ZubcakfiledCriticalJozef Ing Sloboda
Priority to CS866152ApriorityCriticalpatent/CS255398B1/en
Publication of CS615286A1publicationCriticalpatent/CS615286A1/en
Publication of CS255398B1publicationCriticalpatent/CS255398B1/en