Note: This is a sub-section of AEI
1951 The block of Siemens company stock that had been owned by Siemens and Halske AG and then held by the Custodian of Enemy Property was sold to AEI[1]
c.1956 AEI amalgamated Siemens and Edison Swan Electric Co as Siemens Edison Swan[2]
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.
1958 AEI acquired W. T. Henley's Telegraph Works Co with the prospect of rationalising cable making with AEI's SES activities[3]
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 [4]
1962 AEI sold its Siemens Ediswan dry cell battery business to the Ever Ready Co (Great Britain).[5]
1967 Siemens Edison Swan was absorbed into GEC when it took over AEI