Which retail technology innovation was first patented by Norman Joseph Woodland and Bernard Silver in 1952, but didn't see widespread retail adoption until the 1970s?

The retail landscape has been transformed by technological innovations that we now take for granted. From simple conveniences to revolutionary systems, these inventions have changed how we shop forever. This trivia question explores a groundbreaking retail technology that fundamentally altered the checkout experience and inventory management worldwide. Test your knowledge of retail history and the inventions that shaped modern commerce!

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Barcode scanner/UPC system
Electronic cash register (ECR)
RFID tag technology
Self-checkout kiosk