Who actually invented it? - Automatic elevator doors
There are black inventors that are implicitly metioned for their inventions.

Alexander Miles recieved a patentUS371207 on the 11th of October 1887 for his design in automatically opening and closing elevator doors.
Alexander Miles recieved a patentUS371207 on the 11th of October 1887 for his design in automatically opening and closing elevator doors.

Really disappointing that after such an genius invention he went on to work as a barber...like come on dude!!!

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