Siddeley-Deasy was a British automobile, engine and aircraft company based in Coventry in the early 20th century. It was central to the formation, by merger and buy-out, of the later Armstrong Sideleley Motor and Armstrong Whitworth Aircraft companies.
Siddeley-Deasy was a British automobile, engine and aircraft company based in Coventry in the early 20th century. It was central to the formation, by merger and buy-out, of the later Armstrong Sideleley Motor and Armstrong Whitworth Aircraft companies.