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Sentry Siren, formerly known as Sterling siren, is a Civil Defense Siren brand. == History == Sentry Siren was founded as Sterling Siren and Fire Alarm in Rochester, New York in 1905. The company began manufacture of their M-series sirens in the 1910s and 1920s. The M-series were used in fire, air-raid and disaster warning applications, and continued in production through the 1980s. The units were noted for their durability; a 1917 M-5 siren is still in use today by the Manchester, Michigan Fire Department.〔 Today, the M-series units are considered collectibles by siren enthusiasts. In addition to civil defense sirens, Sterling manufactured fire truck and small industrial sirens, police call boxes, and even for a short time, washing machines. In 1976, the company relocated to Canon City, Colorado, and was renamed Sentry Siren.〔 (【引用サイトリンク】title=History )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Sentry siren」の詳細全文を読む スポンサード リンク
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