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Device for primary education through controlled visual representations. (Machine-translation by Google Translate, not legally binding)
Device for primary education through controlled visual representations. (Machine-translation by Google Translate, not legally binding)
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机译:通过受控的视觉表示进行初等教育的设备。 (通过Google翻译进行机器翻译,没有法律约束力)
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摘要
Primary education procedure by means of visual representations controlled characterized by the fact that by means of a switch on luminous focuses contained in cells, the appearance on a screen of a description formed by perforation on an opaque plate is caused discriminately, which description appears illuminated at the moment that is considered timely. (Machine-translation by Google Translate, not legally binding)
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