An early patent for the automatic transmission was granted to Canadian inventor Alfred Horner Munro of Regina in 1923.[20] Becoming a steam engineer, Munro developed his unit to implement compressed air in lieu of hydraulic fluid, and so it lacked electric power and in no way found business application.[21] https://claytonrqonk.bloggazzo.com/31588240/gearbox-kereta-auto-no-further-a-mystery