1928 - Marjorie Joyner--patent for hair wave machine
On this date in 1928, Marjorie Joyner was issued a patent for a permanent wave machine which could wave the hair of both white and Black people. U.S. Patent 1,693,515. Marjorie Joyner was employed by the Madame C.J. Walker Cosmetic Company and assigned her patent rights to that comapny.