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Elijah McCoy, inventor
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A simple biography of the black engineer who invented the automatic lubricator for railway systems and thus gave rise to the phrase "the real McCoy."
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A simple biography of the black engineer who invented the automatic lubricator for railway systems and thus gave rise to the phrase "the real McCoy."
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"A simple biography of the black engineer who invented the automatic lubricator for railway systems and thus gave rise to the phrase "the real McCoy.""
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