Jan
Matzelinger: invented an automatic shoemaker machine
1887 December 30
Sarah
Boone: invented the ironing board (U.S. Patent
#473,653)
1888
Granville
Woods: He developed and patented a system for
overhead electric conducting lines for railroads.
His system was used in Chicago, St. Louis, and
New York City railroads.
1897 November 23
J. L.
Love: Invented a Pencil Sharpener (U.S. Patent
# 594,114)
1899
G. F.
Grant: Invented the golf tee. (U.S. Patent # 638,920)
1905
Madame
CJ Walker: Her real name was Sarah Breedlove
and she developed a conditioning treatment for straightening
hair. She became one of the first American women of
any race or rank to become a millionaire.
1912
Garrett
Morgan: His invention, the gas mask, was used
during World War I to protect soldiers from chlorine
gas fumes.
1923
Garrett
Morgan: He invented the traffic signal to regulate
vehicle movement in city areas.
1938
Charles
Drew: He developed the blood bank and became
the first director of the American Red Cross
blood bank.
1989
Philip
Emeagwali: This Nigerian born programmer invented
supercomputing software that created the fastest computation
in the world
