Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
OTIS ELEVATOR COMPANY
OTIS ELEVATOR COMPANY. The Otis Elevator Company is the world's largest manufacturer of vertical transportation systems principally focusing on elevators and escalators. Founded in Yonkers, New York, USA in 1853 by Elisha Otis, the company pioneered the development of the safety elevator, invented by Otis in 1852, which used a special mechanism to lock the elevator car in place should the hoisting ropes fail.
Otis has installed elevators in some of the world's most famous structures, including the Eiffel Tower, Empire State Building, World Trade Center, The Twilight Zone Tower of Terror, Petronas Twin Towers, Burj Khalifa, CN Tower, the Hotel del Coronado, and the Skylon Tower.
Statistically, Otis is the world's most popular transportation company. It is estimated that the equivalent of the world's population travel in Otis elevators, escalators and moving walkways every three days. According to United Technologies, Otis elevators carry the equivalent of the world's population every nine days.
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Source:
Wikipedia
The 1922 Dubuque Telephone Company listed 1043 Main.
The 1939 through 1948 Dubuque City Directory listed 426 Stampfer Building.
The 1957 through 1980 Dubuque City Directory listed 420 Stampfer Building.
The 1985 Dubuque City Directory listed 115 SECURITY BUILDING.
The 1987 through 1989 Dubuque City Directory listed 105 Security Building.