Which inventor famously disrupted their industry by introducing the 'razor and blades' business model, where the main product was sold at cost or loss while profits came from necessary accessories?

Throughout history, inventors and innovators have not only created groundbreaking products but also pioneered revolutionary pricing strategies that changed entire industries. Some pricing models we take for granted today were once radical departures from traditional commerce. Test your knowledge about the intersection of famous inventions and the pricing strategies that helped them conquer markets.

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King Camp Gillette (Gillette safety razors)
Thomas Edison (phonograph)
Alexander Graham Bell (telephone)
George Eastman (Kodak cameras)