I believe in the 40 it was not invented but discovered by two BELL LAB engineers. YES it is a USA discovery. Was never an invention.
1776
TV became a popular thing to have and because of that TV dinners were invented. The Korean War began June 1950 and Rock and Roll was invented. The credit card was introduced, hydrogen bomb, transistor radio, radial tires, the laser was invented, first modern computer, answering machines, super glue, TV color broadcasting began, optic fiber invented, first microwave ovens, modem invented, hula hoop invented.
2012
MINNESOTA
Coins are not "invented", they're designed. The first circulating cents were designed by the US Mint's Chief Coiner Henry Voight.
Bell Labs.
I dont know
The transistor is a replacement for vacuum tubes, which is smaller, cheaper, and more reliable for most purposes.
aliens from the Roswell crash
he invented the first transistor
Field Effect Transistor (FET) was invented in 1926 by Julius E. Lilienfeld.
they invented the first transistor:)
The transistor
He co-invented the transistor
December 16, 1947
The transistor was invented by Bell Labs in 1948. Applications in consumer devices followed within a few years after that.
There are three men accredited to inventing the transistor, they are John Bardeen, Walter Brattain, and William Shockley.