De-Light: Making an Electric Light Bulb:在线播放
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De-Light: Making an Electric Light Bulb:剧情介绍
Plot Summary:An early educational film/documentary, this little film, produced by the Ford Motor Co. (as the language cards never let you forget), details the pains taking process of making an electric light bulb in 1920. The film progresses along the factory lines through each step of assemblage. It's intent is praise the march of progress in mass production forward.