 On 20 January 1947 "Société des Avions Marcel Bloch" became "Société des Avions Marcel Dassault" to reflect the name adopted by its owner.In 1954, Dassault established an electronics division (by 1962 named "Electronique Marcel Dassault"), the first action of which was to begin development of airborne radars, soon followed by seeker heads for air-to-air missiles, navigation, and bombing aids.From the 1950s to late 1970s exports become a major part of Dassault's business, major successes were the Dassault Mirage series and the Mystere-Falcon.