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Application filed by Berezny Viktor, Ferencik Jan, Lelko Jozef, Lichvar Milan, Ambroz FrantisekfiledCriticalBerezny Viktor
Priority to CS85488ApriorityCriticalpatent/CS248995B1/en
Publication of CS48885A1publicationCriticalpatent/CS48885A1/en
Publication of CS248995B1publicationCriticalpatent/CS248995B1/en