At 1959, Ernie. C.FRAZE (Fraise) of DRT company in dayton, Ohio, USA invented the easy-to-pull cover, that is, the material of the cover itself was processed into rivets, and then the jacket was riveted with a pull ring, and the corresponding notches were matched to form a complete cover. This genius's invention has made a historic breakthrough after 150 years of long development. At the same time, it also laid a solid foundation for the development of canned food and beverage industry. Pop cans originated in the United States and prevailed in the United States.
http://www.didyouknow.cd/china/history/year.html