Passenger elevators transformed the way we build. Buildings of just a few levels extended to skyscrapers because an elevator makes navigating multiple levels far easier for us to accomplish. In recent decades, development of the elevator has reached new heights. Today, passenger elevators are an integral part of most multi-level buildings, designed to recognize our destination and take us there safely in seconds.
from Business Articles from EzineArticles.com http://ift.tt/1P1q1ce
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