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Application filed by Masnik Frantisek, Jozef Ing ZiskafiledCriticalMasnik Frantisek
Priority to CS832871ApriorityCriticalpatent/CS232127B1/en
Publication of CS287183A1publicationCriticalpatent/CS287183A1/en
Publication of CS232127B1publicationCriticalpatent/CS232127B1/en