Alexander Miles born on May 18, 1838, died on May 7, 1918, wan African American inventor known for his patent innovating technology for the opening and closing of elevator doors. The patent was issued on October 11, 1887.
Alexander Miles
Alexander Miles born on May 18, 1838, died on May 7, 1918, wan African American inventor known for his patent innovating technology for the opening and closing of elevator doors. The patent was issued on October 11, 1887.