Which famous product's packaging design from the 1960s was considered revolutionary for featuring a pop-top can, eliminating the need for a separate can opener?

Throughout history, packaging design has evolved dramatically, not just for aesthetics but for functional reasons that shaped consumer behavior and brand recognition. Some packaging innovations completely transformed industries and became iconic symbols of their era. This trivia question explores a groundbreaking packaging development that changed retail history and consumer expectations forever.

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Coca-Cola
Ermal Fraze's Coors Beer can
Campbell's Soup
Maxwell House Coffee