Between 1919 and 1929 the United States has a business boom. There was a rise of 64 percent in manufacturing outputs. The manufacturing process became more efficent with the impovement in mass production. Economic growth
First hand held hair dryer put into the market in Jan 3 1920. It's credibility can not be given to one person. This useful product is now used everyday at the salon and at home.
The 24 hour trafic light was Invented on 5 May 1920 by William Potts. This invention helps regulate street trafic to ensure sale directions to when to stop, when to go and when to slow.
The Q-Tip was invented by Leo Gerstenzand on 6 March 1920. Leo got this idea from watching his wife clean her ears by adding a cotton ball to the end of a toothpick.
Automobile with Combustion Engine was invented in 30 July 1921 by Henry Ford. This product made it handy for people to travel around with ease. Henry Ford saved a lot of time by having his workers be in one place at all times instead of having them move around. The workers would stay in one place the whole day doing the same thing over and over again at a high speed.
Kool Aid was invented by Edwin Perkins on June 21 1926. This product has been loved my many people for it comes in many flavors and it is refreshing.
The everyday used Band Aid invented by Earle Dickson on October 10 1920. This helps sean up minor injuries to help them heal faster.
The liquid fueled rocket was invented on December 14 1926 by Robert H. Goddard
The spiral notebook was invented by Edward Podosek in 1924. Many school require spiral notebooks to take notes. Later with the invention of the binder, many spiral not