Wade-Dahl-Till valve was partially built by the novelist of what nationality?
Roald Dahl Roald Dahl ( , ] ; 13 September 1916 – 23 November 1990) was a British novelist, short story writer, poet, screenwriter, and fighter pilot. His books have sold more than 250 million copies worldwide.
A. Hamilton Gibbs Arthur Hamilton Gibbs (9 March 1888 – 24 May 1964) was an English-American novelist. He was the brother of Cosmo Hamilton and Sir Philip Gibbs.