Which packaging innovation was initially developed in 1952 by the American engineer Ermal Fraze after he struggled to open a beverage container at a picnic?

Test your knowledge about one of the most significant packaging innovations that revolutionized food preservation and distribution in the 20th century. This invention fundamentally changed how products were stored, transported, and consumed worldwide. While many of us interact with this technology daily, few know its fascinating origin story and the scientific breakthrough behind it.

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Pull-tab aluminum can (the first easy-opening can design)
Tetrapak aseptic carton (the first shelf-stable milk packaging)
Aerosol spray can with valve system
Child-resistant medication bottle cap