Pizarra magnetics didactics. (Machine-translation by Google Translate, not legally binding)

摘要

Magnetic didactic board, which being of those that have a metal plate mounted on a support on which adhere number or signs of plastic material that contain a mass of magnetic material inside is characterized because the support is composed of two metal parts one of them in the form of v with its rounded apex on which the slate is fixed, which has two holes for its articulation, with another, the other U-shaped piece, bent at a certain distance from its transversal branch that presents drills coinciding with those of the previous one, which at a level slightly lower than that of the holes has internal stops that limit the movement of the second piece, thus constituting a stable support on four legs. (Machine-translation by Google Translate, not legally binding)