Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,954 pages of information and 232,838 images on early companies, their products and the people who designed and built them.
of Knightsbridge, London
of Havant (1962)
1954 Name changed.
1956 Name changed.
1961 Manufacturers of oil hydraulic equipment. 680 employees. 
1962 Formation of aero hydraulics department
Subsidiary of Sperry Rand