Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,110 pages of information and 233,634 images on early companies, their products and the people who designed and built them.
of Harmondsworth (1947)
of Knottingley (1951)
1922 Company founded
1942 Private company (presumably as an associate of R. K. Dundas)
1946 Company made public
1949 Philidas production was moved to Hughes's factory at Ferrybridge
1951 Name changed.
1959 Part of Whitehouse Industries
1961 Manufacturers of ball and roller bearings.