Introducing the pull-tab! I’m not sure I’ve seen this type, but it must have immediately pre-dated the ring-pull. Invented and patented by Ermal Cleon Fraze, it was sold to Alcoa in 1963, and in less than two years, nearly 75% of all breweries were using the pull-tab. A little background on Fraze and his invention that changed the world can be found here.
Alcoa Aluminum — 1963