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Otis patented the safety brake for the elevator.
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The first time Otis' demonstrated the steam powered elevator safety brake.
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otis' safety elevators were installed the the first skyscraper, built in Chicago.
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Otis updated elevators with the gear-less traction system that included cables and electricity.
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Otis developed a new design for elevators.
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57 elevators were installed in the world's tallest building.
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Otis' company is the world's leading elevator manufacturer. Elevators are constantly updating with new technology and designs.