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National Museum of Nuclear Science & History

James C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, TN. He was a prominent graduate of Carnegie Mellon University in Pittsburgh and was vice-president of the Diamond Alkali Company. Hobbs was brought on to the Manhattan Project by the head of the Kellex Corporation, Percival Keith, to improve the piping system in the K-25 plant. 

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