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Standard Elektrik Lorenz – Dutch Ericsson telephone desk set

1950

Standard Elektrik Lorenz automatic 4 Lines call center

Early 1960s

Standard Elektrik Lorenz calls and signals device

1950s

Standard Elektrik Lorenz teleprinter control

1960s

Standard Telephon telephone desk set

1958

Standard Telephones and Cables Ltd electronic bulb

1947