1876
The Telephone
his hardest invention was the telephone
On the opening of the telephone exchange in Budapest, in Hungary, 1881, Tesla became the chief electrician to the company. His first invention was the telephone repeater.
He was the first person to patent the invention of the telephone>
The first patent for the telephone was awarded to Alexander Graham Bell in 1876. However, the invention of the telephone is disputed.
The discovery of fire and of the wheel were far more useful than the telephone!
No. The telephone is not an innovation it is an invention.
Because if they didnt come up with a telephone invention we wouldn't have cell phones.
The telephone was a wonderful invention
He worked at Budapest Telephone Exchange where he made his first invention.
The telephone, the refrigerator, the light bulb. The Gramme Dynamo, which was the first invention to commercially develop electricity in large, commercial quantities.
the invention of grahambel is the telephone set we are very much thankful to him for his invention .