Grace's Guide
British Industrial History
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,293 pages of information and 219,020 images on early companies, their products and the people who designed and built them.
Thompson Ramo Wooldridge
From Graces Guide
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]