"He is utterly consumed by trying to work with you to solve difficult, sometimes almost seemingly impossible challenges." A photo of the original purchase order from Thomas Edison to Corning for ...
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A 1932 Interview With Thomas Edison's Lab Assistant Who Helped to Make the First Viable Light Bulb in 1879This is a video recording of Francis Jehl discussing his experience working with Thomas Edison in 1879 and helping to make the first practically viable light bulb in history.
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