An early patent to the automatic transmission was granted to Canadian inventor Alfred Horner Munro of Regina in 1923.[twenty] Remaining a steam engineer, Munro made his unit to use compressed air as opposed to hydraulic fluid, and so it lacked electric power and under no circumstances discovered industrial application.[21] https://gearbox-kereta-auto32964.blog5.net/75578900/the-fact-about-gearbox-auto-that-no-one-is-suggesting