His major inventions include phonograph, kinetoscope, dictaphone, incandescent light bulb and tattoo gun etc.
他的主要发明有留声、活动影放映、录、炽灯和纹身枪等。
His major inventions include phonograph, kinetoscope, dictaphone, incandescent light bulb and tattoo gun etc.
他的主要发明有留声、活动影放映、录、炽灯和纹身枪等。
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