Wikipedia
Petlyakov
V.M. Petlyakov Design Bureau (, Opytnoe Konstructorskoe Byuro Petlyakova was a Soviet OKB (design bureau) for military aircraft, headed by designer Vladimir Petlyakov. Following his death in 1942, the bureau was controlled by Izakson, Putliov, and Myasishchyev before being dissolved in 1946.