OKB
TYPE OF CLOSED RESEARCH INSTITUTIONS IN THE SOVIET UNION
Design bureau; Design Bureau; OKB-575; Opytnoye Konstruktorskoye Buro; Experimental Design Bureau
OKB is a transliteration of the Russian initials of "" – , meaning 'experienced design bureau'. During the Soviet era, OKBs were closed institutions working on design and prototyping of advanced technology, usually for military applications.