Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,361 pages of information and 233,518 images on early companies, their products and the people who designed and built them.
1961 Thompson Ramo Wooldridge formed a JV with GEC to market Thompson's industrial process control systems in the UK; Thompson would contribute experience of applying industrial process control in industry; the new company would be called International Systems Control
1964 Acquired Ross Gear and Tool, world's largest maker of hydrostatic steering systems
1965 Thompson Ramo Wooldridge was renamed TRW of Cleveland and Los Angeles
Maker of valves and power steering pumps
1999 Acquired LucasVarity