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escalator
An escalator is a conveyor transport evice for transporting people, consisting of individual, linked steps that move up or down on tracks, which keep the treads horizontal.
Trivia about escalator
Introduced at the 1900 World's Fair in Paris, its name comes from Latin for "one that takes you up the ladder"
Term for a moving stairway, it was originally a trademark of the Otis Elevator Co.
Almost 40 years after Otis invented the safety elevator, Jesse Reno developed this people mover
This clause in a union contract says that wages will rise or fall depending on a standard such as cost of living