W Martin Inventor
Dec. 26, 2024
W. A. Martin - Wikipedia W. A. Martin, African American inventor, patented the lock (July 21, 1889). This was an improvemen… | Black history facts, African american inventors, Black history 17: From startup to $50million in under 18 months… with Martin Warner – The Jax Jones & Martin Warner Show Wake-Up Call - Mishpacha Magazine | W Martin Inventor