Alva J. invented Fisher the first electric washing machine in 1908.
Percy Spencer invented the microwave oven in 1946.
Linus Yale Jr. invented the cylinder pin-tumble in 1861.
Charles Strite invented the pop-up toaster in 1919.
Levi Hutchins invented the first mechanical alarm clock in 1789.
The first swivel chair was invented in the late 1700s by none other than the third President of the United States, Thomas Jefferson.
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