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Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General
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Sheet Holders
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Paper
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Abstract
Improved drawing template, independent of each other, each of which constitutes a semi-template, for the drawing of a part of the figure destined to be completed with another figure of the same shape, in the opposite direction, drawn after the investment of the template, said template being equipped with reference signs, capable of indicating the proper position for the layout, and provide holes intended to constitute centers of rotation for a fixed axis, and also characterized by the laminar body that constitutes the template is provided with circular holes in which they are housed changeable discs capable of rotating inside the housing, whose discs are provided with climbers similar to those described, between reference and housing, reference signals capable of locating their respective positions. (Machine-translation by Google Translate, not legally binding)