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(until 1946, Gumbinnen), a city in Kaliningrad Oblast, RSFSR. Situated at the point where the Krasnaia River empties into the Pissa River (the Pregolia River basin). Railroad station, 115 km east of Kaliningrad. Population, 22,000 (1970).
Gusev is a new center of the electrotechnical industry. (A plant making fittings for lighting engineering and the Mikro-dvigatel’ plant are located here.) It has mixed feed, cheese, and mechanical repair plants and a knitted-goods factory, as well as an agricultural technicum and a national theater. The city was founded in 1724 and was renamed in honor of Guards captain S. I. Gusev, who was killed on Jan. 6, 1945, in a battle near Gumbinnen.