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Elisha Otis birth
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Invents a safety latch for hoisting equipment
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Starts a company to manufacture safe elevators.
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Demonstration of elevator
Otis demonstrates the elevator at the World's Fair, Crystal Palace exposition in New York City -
after his death his sons form Otis Brothers & Company
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Impact
Over 2,000 Otis elevators were in use in office buildings, hotels and department stores