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Application filed by Mach Antonin, Kavka Jaroslav, Jan Ing Galko, Jozef Ing FrelichfiledCriticalMach Antonin
Priority to CS83145ApriorityCriticalpatent/CS238854B1/en
Publication of CS14583A1publicationCriticalpatent/CS14583A1/en
Publication of CS238854B1publicationCriticalpatent/CS238854B1/en