1864 : Clarissa Britain, of St. Joseph, Michigan Records Patent

January 19, 2018 all-day

Clarissa Britain was a 19th-century inventor with seven patents to her name — the most of any Michigan woman of her time. On this day, she recorded a patent for leaf springs in ambulances to provide greater comfort to soldiers being transported from the battlefield.

For more information, see Denise E. Pilato, Clarissa Britain : An Enigmatic Inventor, Michigan History, January-February 2012.