pearsall in A Sentence

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Duane D Pearsall.

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The first low-cost smoke detector for domestic use was developed by Duane D. Pearsall in 1965, an individual replaceable battery-powered unit that could be easily installed.

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The widespread use of smoke detectors in households wasn't feasible until a year later when Duane Pearsall and Stanley Peterson created a single station photoelectric detector that was powered by a battery.

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Board of Education decision, the Pearsall Committee in North Carolina announced its intention to“preserve a segregated school system” and attempted to find clever ways to do this without violating new federal regulations.

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