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Stroller equipped with a radio, including antenna and loudspeaker, to keep the baby quiet.
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the hairdryer was invented by a German who had inserted a hose into a vacuum cleaner.
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Leo Gerstenzang took his wifes invention and put it on the market which had originally been caled baby gays.
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The traffic light was invented by police officer William Potts. He used red, amber and green lights and $37 worth of wire to make his traffic light
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.The Henry Ford automobile with the combustion engine was the most popular invention in the 1920s
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Earle Dickson invented the band-aid because his wife Josephine was cutting herself every day.
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By 1925 this gun became a world recognized symbol of American Gangland and Violence. This gun was first distributed in small quantities to the American Postal Service to prevent the looting of Mail. Eventually this became the gun of choice by law enforcement officers and criminals.
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John A. Larson was the inventer of the lie detector test. He was a medical student when he invented the test .
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A respirator that has helped saved lives, especially those afflicted with polio and other cases of paralysis invented by Philip Drinker.
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The bread slicer was invented by Otto Frederick Rowedder worked on it every day since 1912. He completed the machine that could successfully cut and wrap a loaf of bread.
