Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,103 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
of Brixton Works, Blenheim Road, London SW2
1962 Intertherm was formed jointly by Redifon, the principal manufacturing company of the Rediffusion Group and Research and Control Instruments, part of Philips Electrical Industries to pool the expertise and facilities of the 2 companies in dielectric and induction heating
1966 The company was still not sufficiently profitable due to intense competition
1967 Rediffusion sold its interests in the company to Philips
1968 Offered plastics welding using ultrasonics