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Duane D. "Dewey" Pearsall (3 March 1922 – 11 April 2010) was an American entrepreneur best known for developing and marketing the first battery-powered home smoke detector in 1965. == Biography == 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「Duane D. Pearsall」の詳細全文を読む スポンサード リンク
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