A HISTORY OF EDISON'S WEST ORANGE LABORATORY 1887-1931

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20 operation.XI-10 casing. had ejection device move the cylinder from the mandrel when dictation was over. The Ediphone incorporated several years improvements and modifications, such the new glass mouthpiece which made it easier dictate and semi-automatic correction device. The transcribing machine had the electrical control the secretary's typewriter which greatly increased ease use and speed of . The rubber tubing the earlier machines was replaced with a flexible metal one which gave better recordings. One outstanding feature the later Ediphones was the electrical control device which gave the user complete control the machine via switch the mouthpiece. . The Ediphone came with long mandrel for the inch cylinders. The correction system marked some improvements over earlier ones but was still comparatively troublesome process involving marking guide band attached holder on the machine