Here's the full story of Mary Anderson and the fellow who invented the intermittent windshield wiper, Robert Kearns, who passed away in 2005. He sued the big car companies for patent infringement and won.
https://www.hagerty.com/media/news/a...shield-wipers/
Here's the story of the turn signal, something we now also take for granted.
https://www.cartalk.com/blogs/jim-mo...ry-turn-signal