sentences:  Several companies continued to exist under their own names but, by 1992, most (including MBB and TST) of the former entities had been fully integrated.During 1992, DASA's helicopter portfolio, which had been largely inherited from MBB, was merged with the helicopter division of French manufacturer Aérospatiale to form Eurocopter.The Bo 108, DASA's in-development helicopter derived from MBB's highly successful Bo 105, was one of the assets transferred to the new company; it was launched as the Eurocopter EC135 during the early 1990s to considerable similar commercial success.