Argson was a British manufacturer of invalid carriages and powered tricycles, tracing its origins to a company founded in 1919 by A. R. Garnett and S. O. Needham to produce hand-propelled invalid tricycles. The firm operated as Argson Engineering Co. Ltd in London from 1922, before relocating and continuing as Stanley Engineering Co. Ltd in Egham, Surrey, from 1926 until around 1952. The company built its first powered vehicle in…