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.
1957 Announced Magnetic Drum for Automatic Telephone Equipment
1958 Products reported included telephone handset, transatlantic telephone cable, subsea power cables, water-cooled power cable, uniselector for switching.
1959 Reported on printed circuit connectors, Illuminated acoustic ceiling, self-supporting telephone line, stabilised power units, Subscriber Trunk Dialling, Temple Mills marshalling yard, transistor tester, wide-angle cathode-ray tube; Willington "A" power station, electronic Telephone Exchange experiments, main line A.C. locomotive; the research laboratory reported on semi-conductor production and devices.