Harry Brearley
Harry Brearley (18 February 1871 – 14 July 1948) was an English metallurgist, usually credited with the invention of "rustless steel" (later to be called "stainless steel" in the anglophone world).
Stainless Stephen
He is said to have based the idea during a radio course he took while on military service. Stainless Stephen appeared in Radio Parade (1933), a film of (then) current music hall acts. He supported Will Hay at the Victoria Palace in 1944, and appeared on the bill at the London Palladium's Royal Command Performance in 1945.