who invented the extension cord
The extension cord was invented in 1904 by S. W. Atherton, an  American inventor and electrical engineer.3 people found this useful. Edit. Share to: Nicola. 429,998 Contributions. I'm an English Language graduate with a love for books and all things language related.old your left hand â¦ out, palm up. Hold one end of the extension cord between your thumb and palm with the loose end beyond your thumb. With your right hand, measure out about 3 feet or so and loop it around your left hand just like you would think is correct.