出典:Wikipedia
出典:『Wikipedia』 (2010/09/02 19:33 UTC 版)
Tower Optical Company, Inc. is a small, Norwalk, Connecticut-based company which has manufactured a binocular tower viewer used at major tourist sites in the United States and Canada since 1932. The company's large, silver-colored devices are used at Niagara Falls, the Empire State Building and other locations.