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 Nearly 40 years went by before a really practical generator was built by Thomas Alva Edison in America. Edison used it to produce electric current to light his laboratory and later to supply the necessary current for the first New York street to be lit by electric lamps in September 1882.
- Yet Edison's dynamo or generator, was a mere toy compared with the powerful generators installed in modern power stations.
- Commercial production of lamps started the following year.
- Before he died in 1931, Thomas Alva Edison had patented 1300 inventions.
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