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Application filed by Bobovnicky Jozef, Ivan Ing Geroefi, Novotny Kazimir, Stefan Ing KovacikfiledCriticalBobovnicky Jozef
Priority to CS844781ApriorityCriticalpatent/CS243937B1/en
Publication of CS478184A1publicationCriticalpatent/CS478184A1/en
Publication of CS243937B1publicationCriticalpatent/CS243937B1/en