Lewis Latimer, Light bulb filaments (worked
with Alexander Graham Bell, Thomas Edison), 1848-1928
Jan Matzeliger, Shoe manufacturing, railroad car coupler, 1852-1889
Elijah McCoy, Engine lubrication, graphite lubricator (57 patents), 1843-1928
Frederick McKinley Jones, Refrigeration in trucks, sound reproduction, ticket dispensing, 1893-1961
Garrett Morgan, Gas mask, hair straightening cream, traffic signal device, 1877-1963
Norbert Rillieux, Sugar processing machinery, 1806-1894
Lewis Temple, Whale harpoon (improvement), 1800-1854
Granville Woods, Synchronus multiplex railway telegraph, electro-mechanical brake, induction telegraphy, several other electrical devices, 1856-1910
Percy Julian, Chemistry: physostigmine, fire extinguishing soy protein, cortisone synthesis, 1899-1975
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