Which retail innovation, invented in 1937, first allowed customers to use shopping carts and self-select products, revolutionizing the grocery shopping experience?

The retail landscape has been shaped by groundbreaking innovations that transformed how we shop. From the invention of barcode scanners to self-checkout kiosks, technological advancements have revolutionized the customer experience and operational efficiency. This trivia question focuses on a pivotal innovation that changed retail forever. Do you know which pioneering technology first enabled the modern shopping experience we take for granted today?

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• The Supermarket (Piggly Wiggly's self-service model)
• The Barcode Scanner (IBM's UPC system)
• Electronic Point-of-Sale System (NCR's electronic cash register)
• The Refrigerated Display Case (Hussmann's cooling technology)

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