Seven Black Inventors Whose Patents Helped Shape American Life The New York Times
Garrett Morgan created an improved gas mask. Marie Van Brittan Brown patented a home security system. Lonnie Johnson dreamed up the Super Soaker.
Seven Black Inventors Whose Patents Helped Shape American Life The New York Times
Garrett Morgan created an improved gas mask. Marie Van Brittan Brown patented a home security system. Lonnie Johnson dreamed up the Super Soaker.