The latter was invented at Bell Labs in 1940 and, when used in long distance copper telephone lines, allows a ten-fold increase in line working speed.
At the time, when used in long distance copper telephone lines, it allowed a ten-fold increase in maximum line working speed. The latter was invented at Bell Labs in 1940.
The latter was invented at Bell Labs in 1940. At the time, when used in long distance copper telephone lines, it allowed a ten-fold increase in maximum line working speed.
The latter was invented at Bell Labs in 1940. At the time, when used in long distance copper telephone lines, it allowed a ten-fold increase in maximum line working speed.