Siemens Edison Swan
c.1956 AEI amalgamated Siemens and Edison Swan Electric Co as Siemens Edison Swan[1]
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.
1959 AEI reorganized its businesses into products divisions, 2 of which were managed by Siemens Edison Swan: the Cable Division and the Telecommunications Division [2]
1967 Siemens Edison Swan was absorbed into GEC when it took over AEI