Which inventor's design became incredibly widespread globally noted for its simplicity?

Answer

W. T. Odhner

W. T. Odhner's design for the stepped drum calculator achieved remarkable global widespread adoption, often becoming more ubiquitous internationally than Baldwin's design, which found particular success in North American office settings. The *Original Odhner* model was celebrated for its combination of simplicity in construction and the high degree of accuracy achieved by its mechanism. This global reach was further extended as the core concept was manufactured under license in numerous countries, ensuring its longevity in markets worldwide long after the initial wave of innovation.

Which inventor's design became incredibly widespread globally noted for its simplicity?
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