| The spirit of Menlo Park was sometimes recaptured at the West Orange laboratory, as when Edison worked with this small group to improve the phonograph in 1888. Edison invented the phonograph in 1877 but failed to develop it to the point of producing a commercial device. He returned to it a number of times (as did others) with quite satisfying results. Left to Right, standing: W.K.L. Dickson, Charles Batchelor, A. Theodore E. Wangemann, John Ott, Charles Brown. Seated: Fred Ott, Thomas Edison, George E. Gouraud.
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