Richard Spikes

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Invented an Automatic Gear Shift.

Norbert Rillieux

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Created Sugar-refining Evaporation Pan System.
Black Inventor - blackinventor.com

Albert Richardson

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Invented a Wooden Butter Churn.

Andre Reboucas

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Invented an Early-version Torpedo.
Black Inventor - blackinventor.com

Lloyd Ray

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Created the Dust Pan.
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William Purvis

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Invented a Fountain Pen.