https://ift.tt/2wwdHAe Seven Black Inventors Whose Patents Helped Shape American Life Inventions and Patents, Blacks Garrett Morgan created an improved gas mask. Marie Van Brittan Brown patented a home security system. Lonnie Johnson dreamed up the Super Soaker. CLAUDIO E. CABRERA and JULIA JACOBS https://ift.tt/2SVhtOA February 24, 2019 at 05:30AM