Lightbulb

the lightbulb

  • lighbulb

    Thomas Jefferson invents the lighbulb
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    lighbulb

    Invited to the white house to demonstrate it to President Ruthford B. Hayes.
  • lightbulb

    lightbulb

    first public l demonstration of Thomas Edisons incadescent lighting system
  • lightbulb

    lightbulb

    Thoma's Pearl pwerwing introduced 4 key elements of modern electric utility system.
  • lightbulb

    lightbulb

    combined with different electrical companies
  • lightbulb

    lightbulb

    Edison was dropped from the name and the company