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FERNANDEZ ROCES ANTONIO
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FERNANDEZ ROCES ANTONIO
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Priority to ES0026457UpriorityCriticalpatent/ES26457Y/en
Publication of ES26457UpublicationCriticalpatent/ES26457U/en
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Publication of ES26457YpublicationCriticalpatent/ES26457Y/en
Length-Measuring Instruments Using Mechanical Means
(AREA)
Drawing Aids And Blackboards
(AREA)
Abstract
Auxiliary geometric ruler of drawing, characterized in that it is constituted by a plate of transparent plastic material, in which have been set a series of holes separated from a center in distances that increase in millimeters in millimeters, said plate presenting a longitudinal cut in its center, provided with two conveyors at their ends, which allow drawing without the need for compass, curves and radius circumferences that vary between twenty-six and two hundred and fifty millimeters, or another measure that practice advises. (Machine-translation by Google Translate, not legally binding)