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Nivelaciona masina za zatezanje koloseka, prvenstveno nivelaciona masina za zatezanje i ispravljanje koloseka, prvenstveno nivelaciona masina za zatezanje i ispravljanje koloseka, na
Uredaj za centralno memoriranje informacija koje se odnose na pretplatnicke prikljucne slogove i prenosne uredaje u centralno upravlanim posrednickim, posebno telefoniskim porednickim postrojenjima