An Overview Of Alarm Clock



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Although the Greeks developed a water-operated alarm clock wound 250 B.C, the first mechanical alarm clock was not invented until 1787, when Levi Hutchins of Concord, New Hampshire, made a crude model. Because the alarm could only be set to ring at 4 AM., however, it was of little practical use. In 1876, nearly a hundred years later, Seth Thomas created and patented a wind-up alarm clock that could be set for any hour.
Alarm Clock

    

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