Yorkshire and the Humber
Stainless steel was invented in 1913 by Harry Brearley of Sheffield, working for Firth Brown Steels (now called Sheffield Forgemasters). SAE 304 stainless steel is the most common stainless steel today, invented by Dr William Herbert Hatfield FRS in 1924 at Firth-Vickers known as Staybrite 18/8, a chromium-nickel steel. Many Swiss watches were mostly made out of Staybrite.
Haynes-Apperson
Haynes-Apperson Company was a manufacturer of Brass Era automobiles in Kokomo, Indiana, from 1896 to 1905. It was the first automobile manufacturer in Indiana, and among the first in the United States. Elwood Haynes, one of the founders, was the inventor of stainless steel and stellite, and many of the early advances in automobile technology were first invented by the company.