Biography of Thomas Edison

Thomas Edison Patents thomas edison In 1862, he learned how to use a railroad telegraph Edison then spent many years traveling around Canada and the , working as a telegraph operator and thomas edison ผลงาน BACKGROUND: Thomas Alva Edison was one of the most famous and prolific inventors of all time, responsible for such innovations as the incandescent light bulb,

thomas jefferson Thomas Alva Edison, born in Ohio on February 11, 1847, was one of the most well-known inventors of all time He spent a few of his early years in formal