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Compass to draw ellipses. (Machine-translation by Google Translate, not legally binding)
Compass to draw ellipses. (Machine-translation by Google Translate, not legally binding)
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机译：指南针绘制椭圆。 （通过Google翻译进行机器翻译，没有法律约束力）
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摘要
"COMPASS TO TRACE ELIPSES" which is characterized by consisting of two rods joined at the top by a joint, one of them being provided with a lateral stabilization system, and the other, a cap or similar medium that slides for her and turn turn. (Machine-translation by Google Translate, not legally binding)
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