Although a telephone cable was discussed at that time, it was not practical until a number of technological advances arrived in the 1940s.
A telephone cable was discussed at that time.But it was not practical until a number of technological advances arrived in the 1940s.
A telephone cable was discussed at that time.But it was not practical until a number of technological advances arrived in the 1940s.
Änderung zu einer einfacheren Formulierung: Although a telephone cable was discussed at that time, it was not practical until a number of technological advances arrived in the 1940s. Ausgabe: