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Tags: Defense industry, Explosives industry, Gunpowder industry, Nineteenth century, Twentieth century, Twenty-first century
Tags: ballistics, Charlestown, Explosives industry, Military, Ordnance, Twentieth century, war
Tags: Dynamite, E.I. du Pont de Nemours & Company, Explosions, Explosives industry, Industrial safety, Nineteenth century, Ordnance, Twentieth century
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