Which architectural product design innovation, first implemented in the 1950s, revolutionized skyscraper construction by eliminating the need for masonry exterior walls?

The intersection of architecture and product design has led to revolutionary changes in how buildings are conceived and constructed. From traditional materials to cutting-edge technologies, the evolution of architectural products has shaped skylines across the world. This trivia question focuses on a significant innovation in architectural product design that changed the industry forever. Test your knowledge about how product design innovations have transformed modern architecture!

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Curtain wall systems
Reinforced concrete frames
Space frame structures
Tensile membrane coverings