Necessity isn’t the only mother of invention. Though it wasn’t always easy to get patents or the credit they deserved, women are responsible for many items we use today.
#1. The car heater (Inventions by Woman)
The first car heater, which directed air from over the engine to warm the chilly toes of aristocratic 19th-century motorists, was invented by Margaret A. Wilcox in 1893. She also invented a combined clothes and dish washer, which someone should please build immediately. Source: ehow.com