Tuesday, January 10, 2017

Geek Trivia: Elisha Otis Paved The Way For The Skyscraper With The Invention Of?

Elisha Otis Paved The Way For The Skyscraper With The Invention Of?
  1. Rivet Gun
  2. Automatic Fire Sprinklers
  3. Tempered Glass
  4. Safety Elevators

Think you know the answer?

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