Which of these potato chips packaged in a can were invented in 1968?

After seven long years of development, Pringles premiered in Evansville, Indiana in 1968. They were not a hit right away - in fact, they were considered a flop until the 1980s - but soon Pringles became a household brand. Baur was so proud of what he had developed that he, quite literally, took the Pringles can to his grave.

Source: Food & Wine