AFRICAN AMERICAN ACHIEVEMENTHistory for every day—and beyond.
October 27, 1891 · Invention, Mail & Civic Infrastructure

Philip B. Downing Patented Letter-Box Improvements

His carefully engineered cover, guard plate, and weather protection made a public collection box safer and more dependable.

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Then

Patents recorded technical ideas while racial barriers limited recognition and opportunity.

Now

Downing's specification lets readers examine exactly what he designed and claimed.

Next

Accurate history honors invention without stretching evidence into legend.

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