Which groundbreaking retail technology innovation was first used commercially in 1974 at an Ohio supermarket, scanning a pack of Wrigley's gum?

In the history of retail technology and innovation, certain inventions fundamentally transformed how consumers interact with products. Before the digital revolution, a specific innovation in the 1970s changed retail checkout forever, creating efficiency that saved millions of hours and billions in labor costs. This invention's impact continues today, though the technology has evolved considerably from its original form.

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• UPC Barcode Scanner
• Electronic Cash Register (ECR)
• Self-Checkout Kiosk
• Electronic Article Surveillance (EAS) System

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