Thompson Ramo Wooldridge
1953 Formation of Ramo Woodridge Corporation[1] by 2 engineers who had worked at Hughes Aircraft.
1964 Acquired Ross Gear and Tool, world's largest maker of hydrostatic steering systems[2]
1965 Thompson Ramo Wooldridge was renamed TRW of Cleveland and Los Angeles[3]
Maker of valves and power steering pumps
1999 Acquired LucasVarity
2002 Goodrich acquired the former Lucas Aerospace division, maker of flight controls and cargo handling systems[4]
2002 Heavily in debt, TRW Incorporated was acquired by Northrop Grumman[5]