"Vickers plc" . . . . . . . . "Vickers plc" . "Brown Brothers" . "Purchased byRolls-Royce plcand re-named Vickers Engineering" . . . . . . . . "Vickers Defence Systems" . . . . "Vickers Defence Systems Limited" . "Vickers" . . . "Vickers Defense Systems" . . . . "Vickers Ltd" . .