Answer:
The inventions developed in the 1920s are still in use today. Garret Morgan invented the electric automatic traffic signal in 1923, which was extremely useful. Morgans' traffic lights were distinct from existing traffic signals in that they featured a T-shaped pole with three positions. The invention was worth $40,000 when it was sold. The electronic television is another well-known invention. In 1927, Philo Taylor Farnsworth, John Logie Baird, and Charles Francis Jenkins were credited with designing modern television. The first vacuum dates back to the 1800s, but it was updated in the mid 1920s to improve its efficiency.. Earle Dckson, a Johnson and Johnson employee, invented the first adhesive bandage for small wounds in 1920.