Text from marsel86 -
English
Thomas Alva Edison
- Famous american inventor and employed.
- Edison got in the U.S. thousand patents and about three thousand patents in the other countries.
- He improved telegraph, telephone, cinematographic equipment.
- He constructed electric lamp.
- It was who suggested the use of a telephone conversation at the beggining of the word " Hello"
- marsel86
February 2014
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