which contribution did african american inventor granville woods make to the american economy?\n\ninvention…

which contribution did african american inventor granville woods make to the american economy?\n\ninvention of the telephone\n\ninvention of the traffic signal\n\ninvention of the first automatic dishwasher\n\ninvention of a multiplex telegraph for sending messages to moving trains

which contribution did african american inventor granville woods make to the american economy?\n\ninvention of the telephone\n\ninvention of the traffic signal\n\ninvention of the first automatic dishwasher\n\ninvention of a multiplex telegraph for sending messages to moving trains

Answer

Brief Explanations:

Granville Woods invented a multiplex telegraph for sending messages to moving trains. Alexander Graham Bell is credited with the invention of the telephone. Garret Morgan is known for improvements to the traffic signal. Josephine Cochrane invented the first automatic dishwasher.

Answer:

invention of a multiplex telegraph for sending messages to moving trains