Which innovative product packaging development from the 1950s revolutionized retail by allowing consumers to see products before purchase while providing better protection?

Throughout history, product packaging has evolved dramatically, not just in materials but in functionality and cultural significance. From ancient clay vessels to modern sustainable solutions, packaging innovations have shaped commerce, preserved products, and influenced consumer behavior. This trivia question explores a pivotal moment in packaging history that revolutionized retail and changed how products were marketed and consumed worldwide.

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Cellophane wrapping
Blister packaging
Tin containers
Cardboard boxes with windows