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He had created the cotton mill and the idea of interchangeable parts.
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He had created the first electrical batteries.
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He had invented the telephone, which revolutionized communication.
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He had invented the phonograph, the incandescent light bulb, and an electric generating plant
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He had built an internal combustion engine, and also the first automobile.
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He had invented the radio.
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His biggest invention was the airpane.
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He had invented the assembly line for automobile maufacturing.