. "Duane D. Pearsall"@en . "Pearsall, Duane D."@en . "1922-03-03Z"^^ . "Duane D. Pearsall"@en . "2010Z"^^ . "American entrepreneur" . . "2010-04-11Z"^^ . "Duane D. \"Dewey\" Pearsall (3 March 1922 \u2013 11 April 2010) was an American entrepreneur best known for developing and marketing the first battery-powered home smoke detector in 1965."@en . "1922Z"^^ . . .