Graduated compas for educational uses. (Machine-translation by Google Translate, not legally binding)

摘要

Graduated compass for didactic uses, which is characterized because in its conception part, in principle, of the classic compass consisting of two legs joined together by a screw fastening pin with wing nut, and both legs and other parts that can be manufactured with plastic material, they are preferably made on the basis of this product, conveniently hardened due to the function assigned to the various component elements. (Machine-translation by Google Translate, not legally binding)