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from www.lihpao.com
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From www.lihpao.com
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From en.wikipedia.org
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From americanhistory.si.edu
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From www.historyoasis.com
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Taking a Look at the Surprising History of Fire Alarms When Was The First Fire Alarm Invented channing's brilliant solution was the world's first automated fire alarm. Drawing on recent telegraph technology, he created a system that could send. — fire alarms were first invented in 1852, simply designed as a bell in a box attached to a crank. — in 1852, dr. Channing invented the first fire alarm system that resembled our modern. When Was The First Fire Alarm Invented.
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From www.lihpao.com
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From texashistory.unt.edu
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From en.wikipedia.org
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From www.tffn.net
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From www.variex.in
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From quotefancy.com
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