Inventor of Telephone & cell phone

Father of Telephone & Cell phone

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First Inventor of Telephone & cell phone

Alexander Graham Bell (March 3, 1847 – August 2, 1922)

Graham Bell the Scottish-born American scientist best known as the inventor of the telephone, worked at a school for the deaf while attempting to invent a machine that would transmit sound by electricity.

Bell’s mother and wife were both deaf, this had a major influence on his work.

Bell being awarded the first U.S. patent for the telephone in March 7, 1876.

when he made the first call on March 10, 1876, to his assistant, Thomas Watson: "Mr. Watson--come here--I want to see you.

Martin "Marty" Cooper (born December 26, 1928) is an American engineer.

Cooper left his first job at Teletype Corporation in Chicago in 1954 and joined Motorola, Inc. (Schaumburg, Illinois) as a senior development engineer.

In 1983, the first commercial cellular phone service began operation in the United States and the DynaTAC phone became available to consumers at a list price of around $4,000 ($9,000 in 2011 dollars) but Cooper left Motorola before the launch. In that same year, he co-founded Cellular Business Systems, Inc. (CBSI)

He called his competitor at Bell Labs to gloat at having beat them. It was 40 years ago today, April 3, 1973.

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