Garrett A Morgan (1877-1963)
Invented 3 way automatic stop sign
George T. Sampson
Invented a clothes dryer in 1892
Frederick Jones(1892-1961)
Invented portable air conditioner used in
ww2
Dr. Charles Drew (1904-1950)
Deveoped techniques to store blood and developed blood banks
Thomas J. Martine
Patented the fire extinguisher in 1872
Alexander Miles
Invented the electric elevator with automatic doors in 1887
John love
Invented the pencil sharpener in 1897
C.B Brooks
Invented the street sweeper in 1896
Henry blair (1807-1860)
Invented a corn seed planter in 1834 and a cotton seed planter in 1836
Jack Johonson(1878-1946)
Invented the wrench in1922
Invented 3 way automatic stop sign
George T. Sampson
Invented a clothes dryer in 1892
Frederick Jones(1892-1961)
Invented portable air conditioner used in
ww2
Dr. Charles Drew (1904-1950)
Deveoped techniques to store blood and developed blood banks
Thomas J. Martine
Patented the fire extinguisher in 1872
Alexander Miles
Invented the electric elevator with automatic doors in 1887
John love
Invented the pencil sharpener in 1897
C.B Brooks
Invented the street sweeper in 1896
Henry blair (1807-1860)
Invented a corn seed planter in 1834 and a cotton seed planter in 1836
Jack Johonson(1878-1946)
Invented the wrench in1922