Walker, Sarah Breedlove McWilliams
- Invented a metal heating comb and conditioner for straightening hair (Patented in 1905).
Stokes, Rufus
Invented an air purification service to reduce to a safe level the gases and ash from furnace and power plant smoke (Patented in 1968).
Standard, J.
Invented a refrigerator, which used compressed air and ether as a coolant. (Patented in 1834). Invented Oil stove. (Patented in 1889).
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